42980406 has 32 divisors (see below), whose sum is σ = 98807040. Its totient is φ = 12209376.

The previous prime is 42980389. The next prime is 42980447. The reversal of 42980406 is 60408924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4660 + ... + 10376.

It is an arithmetic number, because the mean of its divisors is an integer number (3087720).

Almost surely, 2^42980406 is an apocalyptic number.

42980406 is an abundant number, since it is smaller than the sum of its proper divisors (55826634).

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

42980406 is a wasteful number, since it uses less digits than its factorization.

42980406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 42980406 is about 6555.9443255720. The cubic root of 42980406 is about 350.2865843248.

The spelling of 42980406 in words is "forty-two million, nine hundred eighty thousand, four hundred six".