42775612 has 36 divisors (see below), whose sum is σ = 86218776. Its totient is φ = 18413280.

The previous prime is 42775543. The next prime is 42775613. The reversal of 42775612 is 21657724.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14538 + ... + 17230.

It is an arithmetic number, because the mean of its divisors is an integer number (2394966).

Almost surely, 2^42775612 is an apocalyptic number.

It is an amenable number.

42775612 is an abundant number, since it is smaller than the sum of its proper divisors (43443164).

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

42775612 is a wasteful number, since it uses less digits than its factorization.

42775612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2725 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 42775612 is about 6540.3067206363. The cubic root of 42775612 is about 349.7293472225.

It can be divided in two parts, 4277 and 5612, that added together give a palindrome (9889).

The spelling of 42775612 in words is "forty-two million, seven hundred seventy-five thousand, six hundred twelve".