37220042 has 4 divisors (see below), whose sum is σ = 55830066. Its totient is φ = 18610020.

The previous prime is 37220033. The next prime is 37220047. The reversal of 37220042 is 24002273.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24002273 = 2341 ⋅10253.

It can be written as a sum of positive squares in only one way, i.e., 27678121 + 9541921 = 5261^2 + 3089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 37219996 and 37220023.

It is not an unprimeable number, because it can be changed into a prime (37220047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9305009 + ... + 9305012.

Almost surely, 2^37220042 is an apocalyptic number.

37220042 is a deficient number, since it is larger than the sum of its proper divisors (18610024).

37220042 is a wasteful number, since it uses less digits than its factorization.

37220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18610023.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 37220042 is about 6100.8230592273. The cubic root of 37220042 is about 333.8814464443.

The spelling of 37220042 in words is "thirty-seven million, two hundred twenty thousand, forty-two".