38720504 has 16 divisors (see below), whose sum is σ = 72701520. Its totient is φ = 19333440.

The previous prime is 38720501. The next prime is 38720551. The reversal of 38720504 is 40502783.

It is a happy number.

It is a super-3 number, since 3×38720504³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3644 + ... + 9524.

It is an arithmetic number, because the mean of its divisors is an integer number (4543845).

Almost surely, 2^38720504 is an apocalyptic number.

It is an amenable number.

38720504 is a deficient number, since it is larger than the sum of its proper divisors (33981016).

38720504 is a wasteful number, since it uses less digits than its factorization.

38720504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710 (or 6706 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 38720504 is about 6222.5801722437. The cubic root of 38720504 is about 338.3090901819.

The spelling of 38720504 in words is "thirty-eight million, seven hundred twenty thousand, five hundred four".