42872980 has 24 divisors (see below), whose sum is σ = 95330088. Its totient is φ = 16140288.

The previous prime is 42872957. The next prime is 42872981. The reversal of 42872980 is 8927824.

It can be written as a sum of positive squares in 4 ways, for example, as 6728836 + 36144144 = 2594^2 + 6012^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42872981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62709 + ... + 63388.

It is an arithmetic number, because the mean of its divisors is an integer number (3972087).

Almost surely, 2^42872980 is an apocalyptic number.

It is an amenable number.

42872980 is an abundant number, since it is smaller than the sum of its proper divisors (52457108).

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

42872980 is a wasteful number, since it uses less digits than its factorization.

42872980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126123 (or 126121 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 42872980 is about 6547.7461771208. The cubic root of 42872980 is about 349.9945033150.

The spelling of 42872980 in words is "forty-two million, eight hundred seventy-two thousand, nine hundred eighty".