42012580 has 12 divisors (see below), whose sum is σ = 88226460. Its totient is φ = 16805024.

The previous prime is 42012571. The next prime is 42012601. The reversal of 42012580 is 8521024.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 21455424 = 4534^2 + 4632^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050295 + ... + 1050334.

It is an arithmetic number, because the mean of its divisors is an integer number (7352205).

Almost surely, 2^42012580 is an apocalyptic number.

It is an amenable number.

42012580 is an abundant number, since it is smaller than the sum of its proper divisors (46213880).

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

42012580 is a wasteful number, since it uses less digits than its factorization.

42012580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100638 (or 2100636 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 42012580 is about 6481.7111938129. The cubic root of 42012580 is about 347.6373661156.

The spelling of 42012580 in words is "forty-two million, twelve thousand, five hundred eighty".