38097818 has 12 divisors (see below), whose sum is σ = 62814570. Its totient is φ = 17317080.

The previous prime is 38097809. The next prime is 38097859. The reversal of 38097818 is 81879083.

It can be written as a sum of positive squares in only one way, i.e., 25938649 + 12159169 = 5093^2 + 3487^2 .

It is a super-2 number, since 2×38097818² = 2902887472722248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78473 + ... + 78956.

Almost surely, 2^38097818 is an apocalyptic number.

38097818 is a deficient number, since it is larger than the sum of its proper divisors (24716752).

38097818 is a wasteful number, since it uses less digits than its factorization.

38097818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157453 (or 157442 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 38097818 is about 6172.3429911177. The cubic root of 38097818 is about 336.4857686909.

The spelling of 38097818 in words is "thirty-eight million, ninety-seven thousand, eight hundred eighteen".