38540902 has 16 divisors (see below), whose sum is σ = 60826752. Its totient is φ = 18290880.

The previous prime is 38540899. The next prime is 38540903. The reversal of 38540902 is 20904583.

It is a super-2 number, since 2×38540902² = 2970802253947208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38540903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3318 + ... + 9385.

It is an arithmetic number, because the mean of its divisors is an integer number (3801672).

Almost surely, 2^38540902 is an apocalyptic number.

38540902 is a deficient number, since it is larger than the sum of its proper divisors (22285850).

38540902 is a wasteful number, since it uses less digits than its factorization.

38540902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12783.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 38540902 is about 6208.1319251446. The cubic root of 38540902 is about 337.7852060139.

The spelling of 38540902 in words is "thirty-eight million, five hundred forty thousand, nine hundred two".