409325431 has 4 divisors (see below), whose sum is σ = 409384864. Its totient is φ = 409266000.

The previous prime is 409325429. The next prime is 409325443. The reversal of 409325431 is 134523904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409325431 - 2¹ = 409325429 is a prime.

It is a super-2 number, since 2×409325431² = 335094616926671522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 409325393 and 409325402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409325131) 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, 17790 + ... + 33691.

It is an arithmetic number, because the mean of its divisors is an integer number (102346216).

Almost surely, 2^409325431 is an apocalyptic number.

409325431 is a deficient number, since it is larger than the sum of its proper divisors (59433).

409325431 is an equidigital number, since it uses as much as digits as its factorization.

409325431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59432.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 409325431 is about 20231.7925799965. The cubic root of 409325431 is about 742.4882340451.

The spelling of 409325431 in words is "four hundred nine million, three hundred twenty-five thousand, four hundred thirty-one".