405350431 has 8 divisors (see below), whose sum is σ = 435240864. Its totient is φ = 376131840.

The previous prime is 405350417. The next prime is 405350441. The reversal of 405350431 is 134053504.

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 405350431 - 2¹⁵ = 405317663 is a prime.

It is a super-2 number, since 2×405350431² = 328617943823771522, 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 = 405350396 and 405350405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405350401) 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, 166710 + ... + 169123.

It is an arithmetic number, because the mean of its divisors is an integer number (54405108).

Almost surely, 2^405350431 is an apocalyptic number.

405350431 is a deficient number, since it is larger than the sum of its proper divisors (29890433).

405350431 is a wasteful number, since it uses less digits than its factorization.

405350431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335921.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 405350431 is about 20133.3164431496. The cubic root of 405350431 is about 740.0769526743.

The spelling of 405350431 in words is "four hundred five million, three hundred fifty thousand, four hundred thirty-one".