37725442 has 4 divisors (see below), whose sum is σ = 56588166. Its totient is φ = 18862720.

The previous prime is 37725439. The next prime is 37725449. The reversal of 37725442 is 24452773.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37564641 + 160801 = 6129^2 + 401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 37725398 and 37725407.

It is not an unprimeable number, because it can be changed into a prime (37725449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9431359 + ... + 9431362.

Almost surely, 2^37725442 is an apocalyptic number.

37725442 is a deficient number, since it is larger than the sum of its proper divisors (18862724).

37725442 is a wasteful number, since it uses less digits than its factorization.

37725442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18862723.

The product of its digits is 47040, while the sum is 34.

The square root of 37725442 is about 6142.1040368916. The cubic root of 37725442 is about 335.3858833950.

The spelling of 37725442 in words is "thirty-seven million, seven hundred twenty-five thousand, four hundred forty-two".