38504736 has 36 divisors (see below), whose sum is σ = 109498662. Its totient is φ = 12834816.

The previous prime is 38504731. The next prime is 38504761. The reversal of 38504736 is 63740583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 608400 = 6156^2 + 780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×38504736² = 2965229388859392, which contains 22 as substring.

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 38504736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38504731) 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, 66561 + ... + 67136.

Almost surely, 2^38504736 is an apocalyptic number.

38504736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38504736 is an abundant number, since it is smaller than the sum of its proper divisors (70993926).

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

38504736 is a wasteful number, since it uses less digits than its factorization.

38504736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133713 (or 133702 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 38504736 is about 6205.2184490153. The cubic root of 38504736 is about 337.6795160213.

Subtracting from 38504736 its sum of digits (36), we obtain a triangular number (38504700 = T₈₇₇₅).

The spelling of 38504736 in words is "thirty-eight million, five hundred four thousand, seven hundred thirty-six".