38140456 has 16 divisors (see below), whose sum is σ = 72494100. Its totient is φ = 18808704.

The previous prime is 38140439. The next prime is 38140457. The reversal of 38140456 is 65404183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36360900 + 1779556 = 6030^2 + 1334^2 .

It is not an unprimeable number, because it can be changed into a prime (38140457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32071 + ... + 33238.

Almost surely, 2^38140456 is an apocalyptic number.

It is an amenable number.

38140456 is a deficient number, since it is larger than the sum of its proper divisors (34353644).

38140456 is a wasteful number, since it uses less digits than its factorization.

38140456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65388 (or 65384 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 38140456 is about 6175.7959810862. The cubic root of 38140456 is about 336.6112503414.

The spelling of 38140456 in words is "thirty-eight million, one hundred forty thousand, four hundred fifty-six".