421888299 has 16 divisors (see below), whose sum is σ = 644286720. Its totient is φ = 240550560.

The previous prime is 421888283. The next prime is 421888307. The reversal of 421888299 is 992888124.

It is a happy number.

It is not a de Polignac number, because 421888299 - 2⁴ = 421888283 is a prime.

It is a super-2 number, since 2×421888299² = 355979473666226802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421888199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12109 + ... + 31470.

It is an arithmetic number, because the mean of its divisors is an integer number (40267920).

Almost surely, 2^421888299 is an apocalyptic number.

421888299 is a deficient number, since it is larger than the sum of its proper divisors (222398421).

421888299 is a wasteful number, since it uses less digits than its factorization.

421888299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44050.

The product of its digits is 663552, while the sum is 51.

The square root of 421888299 is about 20539.9196444387. The cubic root of 421888299 is about 750.0078808061.

The spelling of 421888299 in words is "four hundred twenty-one million, eight hundred eighty-eight thousand, two hundred ninety-nine".