405069315 has 16 divisors (see below), whose sum is σ = 740698368. Its totient is φ = 185174496.

The previous prime is 405069311. The next prime is 405069317. The reversal of 405069315 is 513960504.

It is a happy number.

It is not a de Polignac number, because 405069315 - 2² = 405069311 is a prime.

It is a super-2 number, since 2×405069315² = 328162299909138450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405069311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928797 + ... + 1929006.

It is an arithmetic number, because the mean of its divisors is an integer number (46293648).

Almost surely, 2^405069315 is an apocalyptic number.

405069315 is a deficient number, since it is larger than the sum of its proper divisors (335629053).

405069315 is a wasteful number, since it uses less digits than its factorization.

405069315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857818.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 405069315 is about 20126.3338688396. Note that the first 3 decimals coincide. The cubic root of 405069315 is about 739.9058286543.

The spelling of 405069315 in words is "four hundred five million, sixty-nine thousand, three hundred fifteen".