420538368 has 48 divisors (see below), whose sum is σ = 1121178240. Its totient is φ = 140177408.

The previous prime is 420538357. The next prime is 420538379. The reversal of 420538368 is 863835024.

It is an interprime number because it is at equal distance from previous prime (420538357) and next prime (420538379).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28080 + ... + 40367.

It is an arithmetic number, because the mean of its divisors is an integer number (23357880).

Almost surely, 2^420538368 is an apocalyptic number.

420538368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

420538368 is an abundant number, since it is smaller than the sum of its proper divisors (700639872).

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

420538368 is an equidigital number, since it uses as much as digits as its factorization.

420538368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68472 (or 68452 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 420538368 is about 20507.0321597251. The cubic root of 420538368 is about 749.2070837850.

The spelling of 420538368 in words is "four hundred twenty million, five hundred thirty-eight thousand, three hundred sixty-eight".