421297433832 has 128 divisors (see below), whose sum is σ = 1154829312000. Its totient is φ = 127018560000.

The previous prime is 421297433827. The next prime is 421297433861. The reversal of 421297433832 is 238334792124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72026044 + ... + 72031892.

It is an arithmetic number, because the mean of its divisors is an integer number (9022104000).

Almost surely, 2^421297433832 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 421297433832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577414656000).

421297433832 is an abundant number, since it is smaller than the sum of its proper divisors (733531878168).

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

421297433832 is a wasteful number, since it uses less digits than its factorization.

421297433832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207 (or 7203 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The spelling of 421297433832 in words is "four hundred twenty-one billion, two hundred ninety-seven million, four hundred thirty-three thousand, eight hundred thirty-two".