401702431 has 16 divisors (see below), whose sum is σ = 445688320. Its totient is φ = 359704800.

The previous prime is 401702417. The next prime is 401702443. The reversal of 401702431 is 134207104.

It is not a de Polignac number, because 401702431 - 2⁹ = 401701919 is a prime.

It is a super-2 number, since 2×401702431² = 322729686142619522, 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 (401702831) 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, 82030 + ... + 86788.

It is an arithmetic number, because the mean of its divisors is an integer number (27855520).

Almost surely, 2^401702431 is an apocalyptic number.

401702431 is a deficient number, since it is larger than the sum of its proper divisors (43985889).

401702431 is a wasteful number, since it uses less digits than its factorization.

401702431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 401702431 is about 20042.5155856245. The cubic root of 401702431 is about 737.8501218345.

Adding to 401702431 its reverse (134207104), we get a palindrome (535909535).

It can be divided in two parts, 40170243 and 1, that added together give a square (40170244 = 6338²).

The spelling of 401702431 in words is "four hundred one million, seven hundred two thousand, four hundred thirty-one".