3638404848 has 80 divisors (see below), whose sum is σ = 10655012480. Its totient is φ = 1060584192.

The previous prime is 3638404813. The next prime is 3638404853. The reversal of 3638404848 is 8484048363.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 3638404797 and 3638404806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141586 + ... + 165297.

It is an arithmetic number, because the mean of its divisors is an integer number (133187656).

Almost surely, 2^3638404848 is an apocalyptic number.

3638404848 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3638404848 is an abundant number, since it is smaller than the sum of its proper divisors (7016607632).

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

3638404848 is a wasteful number, since it uses less digits than its factorization.

3638404848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306926 (or 306920 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The square root of 3638404848 is about 60319.1913738903. The cubic root of 3638404848 is about 1538.0495981092.

The spelling of 3638404848 in words is "three billion, six hundred thirty-eight million, four hundred four thousand, eight hundred forty-eight".