42980403 has 16 divisors (see below), whose sum is σ = 61826976. Its totient is φ = 26457600.

The previous prime is 42980389. The next prime is 42980447. The reversal of 42980403 is 30408924.

It is a happy number.

It is not a de Polignac number, because 42980403 - 2⁴ = 42980387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42980473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5248 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (3864186).

Almost surely, 2^42980403 is an apocalyptic number.

42980403 is a deficient number, since it is larger than the sum of its proper divisors (18846573).

42980403 is a wasteful number, since it uses less digits than its factorization.

42980403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15974.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42980403 is about 6555.9440967720. The cubic root of 42980403 is about 350.2865761749.

The spelling of 42980403 in words is "forty-two million, nine hundred eighty thousand, four hundred three".