42242980 has 24 divisors (see below), whose sum is σ = 95534712. Its totient is φ = 15597312.

The previous prime is 42242969. The next prime is 42243007. The reversal of 42242980 is 8924224.

It can be written as a sum of positive squares in 4 ways, for example, as 9684544 + 32558436 = 3112^2 + 5706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80977 + ... + 81496.

It is an arithmetic number, because the mean of its divisors is an integer number (3980613).

Almost surely, 2^42242980 is an apocalyptic number.

It is an amenable number.

42242980 is an abundant number, since it is smaller than the sum of its proper divisors (53291732).

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

42242980 is a wasteful number, since it uses less digits than its factorization.

42242980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162495 (or 162493 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42242980 is about 6499.4599775674. The cubic root of 42242980 is about 348.2716973632.

The spelling of 42242980 in words is "forty-two million, two hundred forty-two thousand, nine hundred eighty".