42980859 has 24 divisors (see below), whose sum is σ = 65538720. Its totient is φ = 27088512.

The previous prime is 42980843. The next prime is 42980887. The reversal of 42980859 is 95808924.

42980859 = 1356² + 1357² + ... + 1378².

It is not a de Polignac number, because 42980859 - 2⁴ = 42980843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42980809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17257 + ... + 19589.

It is an arithmetic number, because the mean of its divisors is an integer number (2730780).

Almost surely, 2^42980859 is an apocalyptic number.

42980859 is a deficient number, since it is larger than the sum of its proper divisors (22557861).

42980859 is a wasteful number, since it uses less digits than its factorization.

42980859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 42980859 is about 6555.9788742796. The cubic root of 42980859 is about 350.2878149574.

The spelling of 42980859 in words is "forty-two million, nine hundred eighty thousand, eight hundred fifty-nine".