42146512 has 20 divisors (see below), whose sum is σ = 84475620. Its totient is φ = 20346368.

The previous prime is 42146509. The next prime is 42146513. The reversal of 42146512 is 21564124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 17106496 = 5004^2 + 4136^2 .

It is a super-2 number, since 2×42146512² = 3552656947532288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42146513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44953 + ... + 45880.

It is an arithmetic number, because the mean of its divisors is an integer number (4223781).

Almost surely, 2^42146512 is an apocalyptic number.

It is an amenable number.

42146512 is an abundant number, since it is smaller than the sum of its proper divisors (42329108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42146512 is a wasteful number, since it uses less digits than its factorization.

42146512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90870 (or 90864 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 42146512 is about 6492.0345039132. The cubic root of 42146512 is about 348.0063855789.

The spelling of 42146512 in words is "forty-two million, one hundred forty-six thousand, five hundred twelve".