38457490 has 16 divisors (see below), whose sum is σ = 69517440. Its totient is φ = 15317680.

The previous prime is 38457487. The next prime is 38457499. The reversal of 38457490 is 9475483.

It is not an unprimeable number, because it can be changed into a prime (38457499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (4344840).

Almost surely, 2^38457490 is an apocalyptic number.

38457490 is a deficient number, since it is larger than the sum of its proper divisors (31059950).

38457490 is a wasteful number, since it uses less digits than its factorization.

38457490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16337.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 38457490 is about 6201.4103234668. The cubic root of 38457490 is about 337.5413465577.

The spelling of 38457490 in words is "thirty-eight million, four hundred fifty-seven thousand, four hundred ninety".