38729404 has 18 divisors (see below), whose sum is σ = 78842400. Its totient is φ = 16598232.

The previous prime is 38729389. The next prime is 38729407. The reversal of 38729404 is 40492783.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38729407) 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, 98604 + ... + 98995.

Almost surely, 2^38729404 is an apocalyptic number.

It is an amenable number.

38729404 is an abundant number, since it is smaller than the sum of its proper divisors (40112996).

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

38729404 is a wasteful number, since it uses less digits than its factorization.

38729404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197617 (or 197608 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 38729404 is about 6223.2952685856. The cubic root of 38729404 is about 338.3350085794.

It can be divided in two parts, 387 and 29404, that added together give a cube (29791 = 31³).

The spelling of 38729404 in words is "thirty-eight million, seven hundred twenty-nine thousand, four hundred four".