405050231 has 4 divisors (see below), whose sum is σ = 405608112. Its totient is φ = 404492352.

The previous prime is 405050131. The next prime is 405050267. The reversal of 405050231 is 132050504.

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 405050231 - 2¹⁴ = 405033847 is a prime.

It is a super-2 number, since 2×405050231² = 328131379266306722, 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 (405050131) 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, 277850 + ... + 279303.

It is an arithmetic number, because the mean of its divisors is an integer number (101402028).

Almost surely, 2^405050231 is an apocalyptic number.

405050231 is a deficient number, since it is larger than the sum of its proper divisors (557881).

405050231 is an equidigital number, since it uses as much as digits as its factorization.

405050231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557880.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 405050231 is about 20125.8597580327. The cubic root of 405050231 is about 739.8942087627.

The spelling of 405050231 in words is "four hundred five million, fifty thousand, two hundred thirty-one".