42973020 has 72 divisors (see below), whose sum is σ = 131171040. Its totient is φ = 11387520.

The previous prime is 42973013. The next prime is 42973031. The reversal of 42973020 is 2037924.

It is a congruent number.

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, 31921 + ... + 33239.

It is an arithmetic number, because the mean of its divisors is an integer number (1821820).

Almost surely, 2^42973020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42973020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65585520).

42973020 is an abundant number, since it is smaller than the sum of its proper divisors (88198020).

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

42973020 is a wasteful number, since it uses less digits than its factorization.

42973020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 42973020 is about 6555.3809957927. The cubic root of 42973020 is about 350.2665180887.

The spelling of 42973020 in words is "forty-two million, nine hundred seventy-three thousand, twenty".