42915580 has 12 divisors (see below), whose sum is σ = 90122760. Its totient is φ = 17166224.

The previous prime is 42915569. The next prime is 42915581. The reversal of 42915580 is 8551924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42915581) 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, 1072870 + ... + 1072909.

It is an arithmetic number, because the mean of its divisors is an integer number (7510230).

Almost surely, 2^42915580 is an apocalyptic number.

It is an amenable number.

42915580 is an abundant number, since it is smaller than the sum of its proper divisors (47207180).

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

42915580 is a wasteful number, since it uses less digits than its factorization.

42915580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145788 (or 2145786 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 42915580 is about 6550.9983971911. The cubic root of 42915580 is about 350.1103869500.

The spelling of 42915580 in words is "forty-two million, nine hundred fifteen thousand, five hundred eighty".