42732420 has 48 divisors (see below), whose sum is σ = 119968128. Its totient is φ = 11365120.

The previous prime is 42732397. The next prime is 42732421. The reversal of 42732420 is 2423724.

It is not an unprimeable number, because it can be changed into a prime (42732421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30577 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (2499336).

Almost surely, 2^42732420 is an apocalyptic number.

It is an amenable number.

42732420 is an abundant number, since it is smaller than the sum of its proper divisors (77235708).

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

42732420 is a wasteful number, since it uses less digits than its factorization.

42732420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 42732420 is about 6537.0039008708. The cubic root of 42732420 is about 349.6115963492.

The spelling of 42732420 in words is "forty-two million, seven hundred thirty-two thousand, four hundred twenty".