42980751 has 24 divisors (see below), whose sum is σ = 69385680. Its totient is φ = 25411200.

The previous prime is 42980747. The next prime is 42980759. The reversal of 42980751 is 15708924.

It is not a de Polignac number, because 42980751 - 2² = 42980747 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42980759) 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, 1236 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (2891070).

Almost surely, 2^42980751 is an apocalyptic number.

42980751 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42980751 is a deficient number, since it is larger than the sum of its proper divisors (26404929).

42980751 is a wasteful number, since it uses less digits than its factorization.

42980751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10647 (or 10644 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 42980751 is about 6555.9706375181. The cubic root of 42980751 is about 350.2875215623.

The spelling of 42980751 in words is "forty-two million, nine hundred eighty thousand, seven hundred fifty-one".