37890225 has 36 divisors (see below), whose sum is σ = 69328896. Its totient is φ = 19772640.

The previous prime is 37890187. The next prime is 37890241. The reversal of 37890225 is 52209873.

It is a happy number.

It is not a de Polignac number, because 37890225 - 2¹⁸ = 37628081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37890225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8784 + ... + 12366.

Almost surely, 2^37890225 is an apocalyptic number.

It is an amenable number.

37890225 is a deficient number, since it is larger than the sum of its proper divisors (31438671).

37890225 is a wasteful number, since it uses less digits than its factorization.

37890225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 37890225 is about 6155.5036349595. The cubic root of 37890225 is about 335.8734908512.

The spelling of 37890225 in words is "thirty-seven million, eight hundred ninety thousand, two hundred twenty-five".