42442512 has 40 divisors (see below), whose sum is σ = 125307456. Its totient is φ = 12126336.

The previous prime is 42442483. The next prime is 42442541. The reversal of 42442512 is 21524424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42442483) and next prime (42442541).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62823 + ... + 63494.

Almost surely, 2^42442512 is an apocalyptic number.

42442512 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42442512 is an abundant number, since it is smaller than the sum of its proper divisors (82864944).

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

42442512 is a wasteful number, since it uses less digits than its factorization.

42442512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126335 (or 126329 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 42442512 is about 6514.7917848539. The cubic root of 42442512 is about 348.8191825856.

Adding to 42442512 its reverse (21524424), we get a palindrome (63966936).

The spelling of 42442512 in words is "forty-two million, four hundred forty-two thousand, five hundred twelve".