421912568 has 32 divisors (see below), whose sum is σ = 986290560. Its totient is φ = 164381280.

The previous prime is 421912567. The next prime is 421912607. The reversal of 421912568 is 865219124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421912567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341846 + ... + 343077.

It is an arithmetic number, because the mean of its divisors is an integer number (30821580).

Almost surely, 2^421912568 is an apocalyptic number.

It is an amenable number.

421912568 is an abundant number, since it is smaller than the sum of its proper divisors (564377992).

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

421912568 is a wasteful number, since it uses less digits than its factorization.

421912568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684947 (or 684943 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 421912568 is about 20540.5104123534. The cubic root of 421912568 is about 750.0222618577.

The spelling of 421912568 in words is "four hundred twenty-one million, nine hundred twelve thousand, five hundred sixty-eight".