421262192256 has 256 divisors, whose sum is σ = 1189704499200. Its totient is φ = 131853312000.

The previous prime is 421262192237. The next prime is 421262192279. The reversal of 421262192256 is 652291262124.

It is a super-2 number, since 2×421262192256² (a number of 24 digits) contains 22 as substring.

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, 93217965 + ... + 93222483.

It is an arithmetic number, because the mean of its divisors is an integer number (4647283200).

Almost surely, 2^421262192256 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 421262192256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594852249600).

421262192256 is an abundant number, since it is smaller than the sum of its proper divisors (768442306944).

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

421262192256 is a wasteful number, since it uses less digits than its factorization.

421262192256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799 (or 4787 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The spelling of 421262192256 in words is "four hundred twenty-one billion, two hundred sixty-two million, one hundred ninety-two thousand, two hundred fifty-six".