38404694208 has 42 divisors (see below), whose sum is σ = 101619605244. Its totient is φ = 12800659584.

The previous prime is 38404694201. The next prime is 38404694221. The reversal of 38404694208 is 80249640483.

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

It is not an unprimeable number, because it can be changed into a prime (38404694201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2708385 + ... + 2722527.

Almost surely, 2^38404694208 is an apocalyptic number.

It is an amenable number.

38404694208 is an abundant number, since it is smaller than the sum of its proper divisors (63214911036).

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

38404694208 is an frugal number, since it uses more digits than its factorization.

38404694208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28301 (or 14148 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

Multiplying 38404694208 by its sum of digits (48), we get a square (1843425321984 = 1357728²).

38404694208 divided by its sum of digits (48) gives a square (800097796 = 28286²).

The spelling of 38404694208 in words is "thirty-eight billion, four hundred four million, six hundred ninety-four thousand, two hundred eight".