2638030356 has 288 divisors, whose sum is σ = 8064725760. Its totient is φ = 747242496.

The previous prime is 2638030261. The next prime is 2638030387. The reversal of 2638030356 is 6530308362.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2638030356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8428056 + ... + 8428368.

It is an arithmetic number, because the mean of its divisors is an integer number (28002520).

Almost surely, 2^2638030356 is an apocalyptic number.

2638030356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2638030356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4032362880).

2638030356 is an abundant number, since it is smaller than the sum of its proper divisors (5426695404).

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

2638030356 is a wasteful number, since it uses less digits than its factorization.

2638030356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 2638030356 is about 51361.7596661174. The cubic root of 2638030356 is about 1381.7408465066.

The spelling of 2638030356 in words is "two billion, six hundred thirty-eight million, thirty thousand, three hundred fifty-six".