37745745 has 16 divisors (see below), whose sum is σ = 61222272. Its totient is φ = 19854720.

The previous prime is 37745731. The next prime is 37745777. The reversal of 37745745 is 54754773.

It is not a de Polignac number, because 37745745 - 2⁵ = 37745713 is a prime.

It is a super-3 number, since 3×37745745³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37745697 and 37745706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16141 + ... + 18330.

It is an arithmetic number, because the mean of its divisors is an integer number (3826392).

Almost surely, 2^37745745 is an apocalyptic number.

It is an amenable number.

37745745 is a deficient number, since it is larger than the sum of its proper divisors (23476527).

37745745 is a wasteful number, since it uses less digits than its factorization.

37745745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34552.

The product of its digits is 411600, while the sum is 42.

The square root of 37745745 is about 6143.7565869751. The cubic root of 37745745 is about 335.4460383643.

Subtracting 37745745 from its reverse (54754773), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 37745745 in words is "thirty-seven million, seven hundred forty-five thousand, seven hundred forty-five".