37894540 has 12 divisors (see below), whose sum is σ = 79578576. Its totient is φ = 15157808.

The previous prime is 37894529. The next prime is 37894543. The reversal of 37894540 is 4549873.

It is a junction number, because it is equal to n+sod(n) for n = 37894493 and 37894502.

It is not an unprimeable number, because it can be changed into a prime (37894543) 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, 947344 + ... + 947383.

It is an arithmetic number, because the mean of its divisors is an integer number (6631548).

Almost surely, 2^37894540 is an apocalyptic number.

It is an amenable number.

37894540 is an abundant number, since it is smaller than the sum of its proper divisors (41684036).

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

37894540 is a wasteful number, since it uses less digits than its factorization.

37894540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894736 (or 1894734 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 37894540 is about 6155.8541243275. The cubic root of 37894540 is about 335.8862403058.

The spelling of 37894540 in words is "thirty-seven million, eight hundred ninety-four thousand, five hundred forty".