42418980 has 36 divisors (see below), whose sum is σ = 128671452. Its totient is φ = 11311680.

The previous prime is 42418939. The next prime is 42418991. The reversal of 42418980 is 8981424.

It can be written as a sum of positive squares in 2 ways, for example, as 17438976 + 24980004 = 4176^2 + 4998^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117651 + ... + 118010.

It is an arithmetic number, because the mean of its divisors is an integer number (3574207).

Almost surely, 2^42418980 is an apocalyptic number.

It is an amenable number.

42418980 is an abundant number, since it is smaller than the sum of its proper divisors (86252472).

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

42418980 is a wasteful number, since it uses less digits than its factorization.

42418980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235676 (or 235671 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 42418980 is about 6512.9854905412. The cubic root of 42418980 is about 348.7547037559.

The spelling of 42418980 in words is "forty-two million, four hundred eighteen thousand, nine hundred eighty".