38018394 has 24 divisors (see below), whose sum is σ = 84127680. Its totient is φ = 12402888.

The previous prime is 38018389. The next prime is 38018401. The reversal of 38018394 is 49381083.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21624 + ... + 23315.

It is an arithmetic number, because the mean of its divisors is an integer number (3505320).

Almost surely, 2^38018394 is an apocalyptic number.

38018394 is an abundant number, since it is smaller than the sum of its proper divisors (46109286).

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

38018394 is a wasteful number, since it uses less digits than its factorization.

38018394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44994 (or 44991 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 38018394 is about 6165.9057728772. The cubic root of 38018394 is about 336.2517776977.

The spelling of 38018394 in words is "thirty-eight million, eighteen thousand, three hundred ninety-four".