2119406520 has 128 divisors (see below), whose sum is σ = 7927165440. Its totient is φ = 440394240.

The previous prime is 2119406501. The next prime is 2119406537. The reversal of 2119406520 is 256049112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105447 + ... + 123926.

It is an arithmetic number, because the mean of its divisors is an integer number (61930980).

Almost surely, 2^2119406520 is an apocalyptic number.

2119406520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2119406520 is an abundant number, since it is smaller than the sum of its proper divisors (5807758920).

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

2119406520 is a wasteful number, since it uses less digits than its factorization.

2119406520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229405 (or 229401 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2119406520 is about 46037.0125008129. The cubic root of 2119406520 is about 1284.5117718083.

The spelling of 2119406520 in words is "two billion, one hundred nineteen million, four hundred six thousand, five hundred twenty".