42002480 has 40 divisors (see below), whose sum is σ = 105170352. Its totient is φ = 15508224.

The previous prime is 42002459. The next prime is 42002507. The reversal of 42002480 is 8420024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 19154 + ... + 21233.

Almost surely, 2^42002480 is an apocalyptic number.

42002480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42002480 is an abundant number, since it is smaller than the sum of its proper divisors (63167872).

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

42002480 is a wasteful number, since it uses less digits than its factorization.

42002480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40413 (or 40407 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 42002480 is about 6480.9320317374. The cubic root of 42002480 is about 347.6095060572.

The spelling of 42002480 in words is "forty-two million, two thousand, four hundred eighty".