42528490 has 16 divisors (see below), whose sum is σ = 77156352. Its totient is φ = 16876944.

The previous prime is 42528481. The next prime is 42528491. The reversal of 42528490 is 9482524.

It is not an unprimeable number, because it can be changed into a prime (42528491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15474 + ... + 18013.

It is an arithmetic number, because the mean of its divisors is an integer number (4822272).

Almost surely, 2^42528490 is an apocalyptic number.

42528490 is a deficient number, since it is larger than the sum of its proper divisors (34627862).

42528490 is a wasteful number, since it uses less digits than its factorization.

42528490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33621.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 42528490 is about 6521.3871223843. The cubic root of 42528490 is about 349.0545640913.

The spelling of 42528490 in words is "forty-two million, five hundred twenty-eight thousand, four hundred ninety".