38457390 has 32 divisors (see below), whose sum is σ = 92558880. Its totient is φ = 10226304.

The previous prime is 38457361. The next prime is 38457401. The reversal of 38457390 is 9375483.

It is a super-2 number, since 2×38457390² = 2957941691224200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10296 + ... + 13524.

It is an arithmetic number, because the mean of its divisors is an integer number (2892465).

Almost surely, 2^38457390 is an apocalyptic number.

38457390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38457390 is an abundant number, since it is smaller than the sum of its proper divisors (54101490).

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

38457390 is a wasteful number, since it uses less digits than its factorization.

38457390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 38457390 is about 6201.4022607794. The cubic root of 38457390 is about 337.5410539908.

The spelling of 38457390 in words is "thirty-eight million, four hundred fifty-seven thousand, three hundred ninety".