2638196320 has 48 divisors (see below), whose sum is σ = 6334938288. Its totient is φ = 1037975040.

The previous prime is 2638196299. The next prime is 2638196369. The reversal of 2638196320 is 236918362.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125394 + ... + 144913.

It is an arithmetic number, because the mean of its divisors is an integer number (131977881).

Almost surely, 2^2638196320 is an apocalyptic number.

2638196320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2638196320 is an abundant number, since it is smaller than the sum of its proper divisors (3696741968).

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

2638196320 is a wasteful number, since it uses less digits than its factorization.

2638196320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270383 (or 270375 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 2638196320 is about 51363.3752784998. The cubic root of 2638196320 is about 1381.7698219666.

The spelling of 2638196320 in words is "two billion, six hundred thirty-eight million, one hundred ninety-six thousand, three hundred twenty".