42980724 has 18 divisors (see below), whose sum is σ = 108645810. Its totient is φ = 14326896.

The previous prime is 42980713. The next prime is 42980731. The reversal of 42980724 is 42708924.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 9108324 = 5820^2 + 3018^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1193909 = 42980724 / (4 + 2 + 9 + 8 + 0 + 7 + 2 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 596919 + ... + 596990.

Almost surely, 2^42980724 is an apocalyptic number.

It is an amenable number.

42980724 is an abundant number, since it is smaller than the sum of its proper divisors (65665086).

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

42980724 is a wasteful number, since it uses less digits than its factorization.

42980724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193919 (or 1193914 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 42980724 is about 6555.9685783262. The cubic root of 42980724 is about 350.2874482135.

The spelling of 42980724 in words is "forty-two million, nine hundred eighty thousand, seven hundred twenty-four".