38432840 has 32 divisors (see below), whose sum is σ = 88318080. Its totient is φ = 15045312.

The previous prime is 38432833. The next prime is 38432851. The reversal of 38432840 is 4823483.

It is a junction number, because it is equal to n+sod(n) for n = 38432797 and 38432806.

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, 8342 + ... + 12101.

It is an arithmetic number, because the mean of its divisors is an integer number (2759940).

Almost surely, 2^38432840 is an apocalyptic number.

It is an amenable number.

38432840 is an abundant number, since it is smaller than the sum of its proper divisors (49885240).

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

38432840 is a wasteful number, since it uses less digits than its factorization.

38432840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20501 (or 20497 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 38432840 is about 6199.4225537545. The cubic root of 38432840 is about 337.4692134698.

The spelling of 38432840 in words is "thirty-eight million, four hundred thirty-two thousand, eight hundred forty".