421194631 has 8 divisors (see below), whose sum is σ = 494830224. Its totient is φ = 353449920.

The previous prime is 421194619. The next prime is 421194659. The reversal of 421194631 is 136491124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421194631 - 2²⁷ = 286976903 is a prime.

It is a super-2 number, since 2×421194631² = 354809834366452322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421194593 and 421194602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421194031) 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, 1472566 + ... + 1472851.

It is an arithmetic number, because the mean of its divisors is an integer number (61853778).

Almost surely, 2^421194631 is an apocalyptic number.

421194631 is a deficient number, since it is larger than the sum of its proper divisors (73635593).

421194631 is a wasteful number, since it uses less digits than its factorization.

421194631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945441.

The product of its digits is 5184, while the sum is 31.

The square root of 421194631 is about 20523.0268479092. The cubic root of 421194631 is about 749.5966014354.

The spelling of 421194631 in words is "four hundred twenty-one million, one hundred ninety-four thousand, six hundred thirty-one".