405324031 has 12 divisors (see below), whose sum is σ = 472064880. Its totient is φ = 347004000.

The previous prime is 405324001. The next prime is 405324061. The reversal of 405324031 is 130423504.

It is an interprime number because it is at equal distance from previous prime (405324001) and next prime (405324061).

It is not a de Polignac number, because 405324031 - 2⁹ = 405323519 is a prime.

It is a super-2 number, since 2×405324031² = 328575140212177922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 405323993 and 405324011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405324001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40531 + ... + 49531.

It is an arithmetic number, because the mean of its divisors is an integer number (39338740).

Almost surely, 2^405324031 is an apocalyptic number.

405324031 is a deficient number, since it is larger than the sum of its proper divisors (66740849).

405324031 is an equidigital number, since it uses as much as digits as its factorization.

405324031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9934 (or 9927 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405324031 is about 20132.6608027851. The cubic root of 405324031 is about 740.0608855431.

Adding to 405324031 its reverse (130423504), we get a palindrome (535747535).

The spelling of 405324031 in words is "four hundred five million, three hundred twenty-four thousand, thirty-one".