431401404 has 24 divisors (see below), whose sum is σ = 1150403968. Its totient is φ = 123257520.

The previous prime is 431401393. The next prime is 431401417. The reversal of 431401404 is 404104134.

It is a super-2 number, since 2×431401404² = 372214342746342432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2567782 + ... + 2567949.

Almost surely, 2^431401404 is an apocalyptic number.

It is an amenable number.

431401404 is an abundant number, since it is smaller than the sum of its proper divisors (719002564).

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

431401404 is a wasteful number, since it uses less digits than its factorization.

431401404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135745 (or 5135743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 431401404 is about 20770.2047173349. The cubic root of 431401404 is about 755.6033094224.

Adding to 431401404 its reverse (404104134), we get a palindrome (835505538).

It can be divided in two parts, 43140 and 1404, that added together give a palindrome (44544).

The spelling of 431401404 in words is "four hundred thirty-one million, four hundred one thousand, four hundred four".