2605463220 has 48 divisors (see below), whose sum is σ = 7331990400. Its totient is φ = 691295616.

The previous prime is 2605463219. The next prime is 2605463227. The reversal of 2605463220 is 223645062.

2605463220 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 a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605463227) 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, 97167 + ... + 121046.

It is an arithmetic number, because the mean of its divisors is an integer number (152749800).

Almost surely, 2^2605463220 is an apocalyptic number.

2605463220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605463220 is an abundant number, since it is smaller than the sum of its proper divisors (4726527180).

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

2605463220 is a wasteful number, since it uses less digits than its factorization.

2605463220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218424 (or 218422 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2605463220 is about 51043.7383035373. The cubic root of 2605463220 is about 1376.0313091454.

The spelling of 2605463220 in words is "two billion, six hundred five million, four hundred sixty-three thousand, two hundred twenty".