37938840 has 64 divisors (see below), whose sum is σ = 114242400. Its totient is φ = 10079232.

The previous prime is 37938833. The next prime is 37938847. The reversal of 37938840 is 4883973.

It is an interprime number because it is at equal distance from previous prime (37938833) and next prime (37938847).

It is a junction number, because it is equal to n+sod(n) for n = 37938792 and 37938801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37938847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48694 + ... + 49466.

Almost surely, 2^37938840 is an apocalyptic number.

37938840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37938840 is an abundant number, since it is smaller than the sum of its proper divisors (76303560).

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

37938840 is a wasteful number, since it uses less digits than its factorization.

37938840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 37938840 is about 6159.4512742614. The cubic root of 37938840 is about 336.0170767965.

The spelling of 37938840 in words is "thirty-seven million, nine hundred thirty-eight thousand, eight hundred forty".