401342831 has 8 divisors (see below), whose sum is σ = 411996480. Its totient is φ = 390828672.

The previous prime is 401342827. The next prime is 401342849. The reversal of 401342831 is 138243104.

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 401342831 - 2² = 401342827 is a prime.

It is a super-2 number, since 2×401342831² = 322152135990189122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401342831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401302831) 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, 29030 + ... + 40563.

It is an arithmetic number, because the mean of its divisors is an integer number (51499560).

Almost surely, 2^401342831 is an apocalyptic number.

401342831 is a deficient number, since it is larger than the sum of its proper divisors (10653649).

401342831 is an equidigital number, since it uses as much as digits as its factorization.

401342831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69745.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 401342831 is about 20033.5426472704. The cubic root of 401342831 is about 737.6298840859.

Adding to 401342831 its reverse (138243104), we get a palindrome (539585935).

The spelling of 401342831 in words is "four hundred one million, three hundred forty-two thousand, eight hundred thirty-one".