38842920 has 48 divisors (see below), whose sum is σ = 126240660. Its totient is φ = 10358016.

The previous prime is 38842891. The next prime is 38842931. The reversal of 38842920 is 2924883.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 427716 = 6198^2 + 654^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53589 + ... + 54308.

Almost surely, 2^38842920 is an apocalyptic number.

38842920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38842920 is an abundant number, since it is smaller than the sum of its proper divisors (87397740).

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

38842920 is a wasteful number, since it uses less digits than its factorization.

38842920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107914 (or 107907 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 38842920 is about 6232.4088440987. The cubic root of 38842920 is about 338.6652397967.

The spelling of 38842920 in words is "thirty-eight million, eight hundred forty-two thousand, nine hundred twenty".