37442745 has 24 divisors (see below), whose sum is σ = 65637000. Its totient is φ = 19742976.

The previous prime is 37442737. The next prime is 37442747. The reversal of 37442745 is 54724473.

It can be written as a sum of positive squares in 4 ways, for example, as 4678569 + 32764176 = 2163^2 + 5724^2 .

It is not a de Polignac number, because 37442745 - 2³ = 37442737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37442747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670 + ... + 8679.

It is an arithmetic number, because the mean of its divisors is an integer number (2734875).

Almost surely, 2^37442745 is an apocalyptic number.

It is an amenable number.

37442745 is a deficient number, since it is larger than the sum of its proper divisors (28194255).

37442745 is a wasteful number, since it uses less digits than its factorization.

37442745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449 (or 9446 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 37442745 is about 6119.0477200296. The cubic root of 37442745 is about 334.5460399001.

The spelling of 37442745 in words is "thirty-seven million, four hundred forty-two thousand, seven hundred forty-five".