421975296 has 108 divisors (see below), whose sum is σ = 1269716448. Its totient is φ = 134525952.

The previous prime is 421975277. The next prime is 421975303. The reversal of 421975296 is 692579124.

421975296 is a `hidden beast` number, since 421 + 97 + 52 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49011 + ... + 56973.

Almost surely, 2^421975296 is an apocalyptic number.

421975296 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421975296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634858224).

421975296 is an abundant number, since it is smaller than the sum of its proper divisors (847741152).

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

421975296 is a wasteful number, since it uses less digits than its factorization.

421975296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008 (or 7991 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 421975296 is about 20542.0372894219. The cubic root of 421975296 is about 750.0594299573.

The spelling of 421975296 in words is "four hundred twenty-one million, nine hundred seventy-five thousand, two hundred ninety-six".