42937520 has 20 divisors (see below), whose sum is σ = 99829920. Its totient is φ = 17174976.

The previous prime is 42937483. The next prime is 42937523. The reversal of 42937520 is 2573924.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (42937523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268280 + ... + 268439.

It is an arithmetic number, because the mean of its divisors is an integer number (4991496).

Almost surely, 2^42937520 is an apocalyptic number.

42937520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42937520 is an abundant number, since it is smaller than the sum of its proper divisors (56892400).

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

42937520 is a wasteful number, since it uses less digits than its factorization.

42937520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536732 (or 536726 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 42937520 is about 6552.6727371356. The cubic root of 42937520 is about 350.1700398255.

The spelling of 42937520 in words is "forty-two million, nine hundred thirty-seven thousand, five hundred twenty".