405295023 has 72 divisors (see below), whose sum is σ = 688268160. Its totient is φ = 210924000.

The previous prime is 405295001. The next prime is 405295031. The reversal of 405295023 is 320592504.

It is not a de Polignac number, because 405295023 - 2⁵ = 405294991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405295073) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2683998 + ... + 2684148.

It is an arithmetic number, because the mean of its divisors is an integer number (9559280).

Almost surely, 2^405295023 is an apocalyptic number.

405295023 is a deficient number, since it is larger than the sum of its proper divisors (282973137).

405295023 is a wasteful number, since it uses less digits than its factorization.

405295023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 405295023 is about 20131.9403684791. The cubic root of 405295023 is about 740.0432303695.

The spelling of 405295023 in words is "four hundred five million, two hundred ninety-five thousand, twenty-three".