42967980 has 72 divisors (see below), whose sum is σ = 142191504. Its totient is φ = 10416000.

The previous prime is 42967943. The next prime is 42967997. The reversal of 42967980 is 8976924.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8871 + ... + 12830.

It is an arithmetic number, because the mean of its divisors is an integer number (1974882).

Almost surely, 2^42967980 is an apocalyptic number.

It is an amenable number.

42967980 is an abundant number, since it is smaller than the sum of its proper divisors (99223524).

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

42967980 is a wasteful number, since it uses less digits than its factorization.

42967980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727 (or 21722 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 42967980 is about 6554.9965675048. The cubic root of 42967980 is about 350.2528241301.

Adding to 42967980 its sum of digits (45), we get a square (42968025 = 6555²).

The spelling of 42967980 in words is "forty-two million, nine hundred sixty-seven thousand, nine hundred eighty".