42011512 has 16 divisors (see below), whose sum is σ = 79044840. Its totient is φ = 20932896.

The previous prime is 42011509. The next prime is 42011521. The reversal of 42011512 is 21511024.

It is a super-2 number, since 2×42011512² = 3529934281052288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6618 + ... + 11305.

Almost surely, 2^42011512 is an apocalyptic number.

It is an amenable number.

42011512 is a deficient number, since it is larger than the sum of its proper divisors (37033328).

42011512 is a wasteful number, since it uses less digits than its factorization.

42011512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18222 (or 18218 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 42011512 is about 6481.6288076378. The cubic root of 42011512 is about 347.6344203325.

Adding to 42011512 its reverse (21511024), we get a palindrome (63522536).

The spelling of 42011512 in words is "forty-two million, eleven thousand, five hundred twelve".