421433199 has 48 divisors (see below), whose sum is σ = 694896384. Its totient is φ = 255218040.

The previous prime is 421433183. The next prime is 421433231. The reversal of 421433199 is 991334124.

421433199 is a `hidden beast` number, since 421 + 43 + 3 + 199 = 666.

It is not a de Polignac number, because 421433199 - 2⁴ = 421433183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421437199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322782 + ... + 324084.

It is an arithmetic number, because the mean of its divisors is an integer number (14477008).

Almost surely, 2^421433199 is an apocalyptic number.

421433199 is a deficient number, since it is larger than the sum of its proper divisors (273463185).

421433199 is an equidigital number, since it uses as much as digits as its factorization.

421433199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1317 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 421433199 is about 20528.8382282096. The cubic root of 421433199 is about 749.7381005556.

The spelling of 421433199 in words is "four hundred twenty-one million, four hundred thirty-three thousand, one hundred ninety-nine".