42452578 has 32 divisors (see below), whose sum is σ = 77736960. Its totient is φ = 16994880.

The previous prime is 42452573. The next prime is 42452581. The reversal of 42452578 is 87525424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42452573) 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, 10900 + ... + 14272.

It is an arithmetic number, because the mean of its divisors is an integer number (2429280).

Almost surely, 2^42452578 is an apocalyptic number.

42452578 is a deficient number, since it is larger than the sum of its proper divisors (35284382).

42452578 is a wasteful number, since it uses less digits than its factorization.

42452578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442.

The product of its digits is 89600, while the sum is 37.

The square root of 42452578 is about 6515.5642886860. The cubic root of 42452578 is about 348.8467566395.

The spelling of 42452578 in words is "forty-two million, four hundred fifty-two thousand, five hundred seventy-eight".