42611572 has 6 divisors (see below), whose sum is σ = 74570258. Its totient is φ = 21305784.

The previous prime is 42611561. The next prime is 42611579. The reversal of 42611572 is 27511624.

It can be written as a sum of positive squares in only one way, i.e., 41912676 + 698896 = 6474^2 + 836^2 .

It is a super-2 number, since 2×42611572² = 3631492136622368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42611572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42611579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5326443 + ... + 5326450.

Almost surely, 2^42611572 is an apocalyptic number.

It is an amenable number.

42611572 is a deficient number, since it is larger than the sum of its proper divisors (31958686).

42611572 is a wasteful number, since it uses less digits than its factorization.

42611572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652897 (or 10652895 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 42611572 is about 6527.7539782072. The cubic root of 42611572 is about 349.2817160330.

The spelling of 42611572 in words is "forty-two million, six hundred eleven thousand, five hundred seventy-two".