403674431 has 4 divisors (see below), whose sum is σ = 403716864. Its totient is φ = 403632000.

The previous prime is 403674419. The next prime is 403674433. The reversal of 403674431 is 134476304.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 403674431 - 2¹⁰ = 403673407 is a prime.

It is a super-2 number, since 2×403674431² = 325906092486347522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403674433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386 + ... + 28416.

It is an arithmetic number, because the mean of its divisors is an integer number (100929216).

Almost surely, 2^403674431 is an apocalyptic number.

403674431 is a deficient number, since it is larger than the sum of its proper divisors (42433).

403674431 is a wasteful number, since it uses less digits than its factorization.

403674431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42432.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 403674431 is about 20091.6507783706. The cubic root of 403674431 is about 739.0555463957.

The spelling of 403674431 in words is "four hundred three million, six hundred seventy-four thousand, four hundred thirty-one".