37894545 has 48 divisors (see below), whose sum is σ = 71303232. Its totient is φ = 18506880.

The previous prime is 37894543. The next prime is 37894553. The reversal of 37894545 is 54549873.

It is not a de Polignac number, because 37894545 - 2¹ = 37894543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 37894545.

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 47 ways as a sum of consecutive naturals, for example, 123282 + ... + 123588.

It is an arithmetic number, because the mean of its divisors is an integer number (1485484).

Almost surely, 2^37894545 is an apocalyptic number.

It is an amenable number.

37894545 is a deficient number, since it is larger than the sum of its proper divisors (33408687).

37894545 is a wasteful number, since it uses less digits than its factorization.

37894545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 539 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 37894545 is about 6155.8545304450. The cubic root of 37894545 is about 335.8862550786.

The spelling of 37894545 in words is "thirty-seven million, eight hundred ninety-four thousand, five hundred forty-five".