38496440 has 32 divisors (see below), whose sum is σ = 86795280. Its totient is φ = 15366912.

The previous prime is 38496439. The next prime is 38496473. The reversal of 38496440 is 4469483.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38496394 and 38496403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33719 + ... + 34841.

Almost surely, 2^38496440 is an apocalyptic number.

It is an amenable number.

38496440 is an abundant number, since it is smaller than the sum of its proper divisors (48298840).

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

38496440 is a wasteful number, since it uses less digits than its factorization.

38496440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 38496440 is about 6204.5499433883. The cubic root of 38496440 is about 337.6552628101.

The spelling of 38496440 in words is "thirty-eight million, four hundred ninety-six thousand, four hundred forty".