37318642 has 4 divisors (see below), whose sum is σ = 55977966. Its totient is φ = 18659320.

The previous prime is 37318601. The next prime is 37318643. The reversal of 37318642 is 24681373.

It is a happy number.

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., 33628401 + 3690241 = 5799^2 + 1921^2 .

It is a junction number, because it is equal to n+sod(n) for n = 37318598 and 37318607.

It is not an unprimeable number, because it can be changed into a prime (37318643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9329659 + ... + 9329662.

Almost surely, 2^37318642 is an apocalyptic number.

37318642 is a deficient number, since it is larger than the sum of its proper divisors (18659324).

37318642 is a wasteful number, since it uses less digits than its factorization.

37318642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18659323.

The product of its digits is 24192, while the sum is 34.

The square root of 37318642 is about 6108.8985913993. The cubic root of 37318642 is about 334.1760160844.

The spelling of 37318642 in words is "thirty-seven million, three hundred eighteen thousand, six hundred forty-two".