405456920231 has 8 divisors (see below), whose sum is σ = 446374592400. Its totient is φ = 365215573440.

The previous prime is 405456920203. The next prime is 405456920243. The reversal of 405456920231 is 132029654504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405456920231 is a prime.

It is a super-2 number, since 2×405456920231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405456920261) 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, 169080086 + ... + 169082483.

It is an arithmetic number, because the mean of its divisors is an integer number (55796824050).

Almost surely, 2^405456920231 is an apocalyptic number.

405456920231 is a deficient number, since it is larger than the sum of its proper divisors (40917672169).

405456920231 is a wasteful number, since it uses less digits than its factorization.

405456920231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338162689.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 405456920231 in words is "four hundred five billion, four hundred fifty-six million, nine hundred twenty thousand, two hundred thirty-one".