2266621920 has 96 divisors (see below), whose sum is σ = 7933191840. Its totient is φ = 604431360.

The previous prime is 2266621919. The next prime is 2266621921. The reversal of 2266621920 is 291266622.

2266621920 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2266621919) and next prime (2266621921).

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266621921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258021 + ... + 266660.

It is an arithmetic number, because the mean of its divisors is an integer number (82637415).

Almost surely, 2^2266621920 is an apocalyptic number.

2266621920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2266621920 is an abundant number, since it is smaller than the sum of its proper divisors (5666569920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2266621920 is a wasteful number, since it uses less digits than its factorization.

2266621920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524705 (or 524691 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2266621920 is about 47609.0529206368. The cubic root of 2266621920 is about 1313.5895801259.

The spelling of 2266621920 in words is "two billion, two hundred sixty-six million, six hundred twenty-one thousand, nine hundred twenty".