42425490 has 32 divisors (see below), whose sum is σ = 103991040. Its totient is φ = 11072384.

The previous prime is 42425459. The next prime is 42425491. The reversal of 42425490 is 9452424.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (42425491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13635 + ... + 16454.

It is an arithmetic number, because the mean of its divisors is an integer number (3249720).

Almost surely, 2^42425490 is an apocalyptic number.

42425490 is an abundant number, since it is smaller than the sum of its proper divisors (61565550).

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

42425490 is a wasteful number, since it uses less digits than its factorization.

42425490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30146.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 42425490 is about 6513.4852421726. The cubic root of 42425490 is about 348.7725438594.

The spelling of 42425490 in words is "forty-two million, four hundred twenty-five thousand, four hundred ninety".