405270468 has 36 divisors (see below), whose sum is σ = 1027214188. Its totient is φ = 134723520.

The previous prime is 405270457. The next prime is 405270521. The reversal of 405270468 is 864072504.

It can be written as a sum of positive squares in 2 ways, for example, as 202549824 + 202720644 = 14232^2 + 14238^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1663 + ... + 28518.

Almost surely, 2^405270468 is an apocalyptic number.

It is an amenable number.

405270468 is an abundant number, since it is smaller than the sum of its proper divisors (621943720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405270468 is a wasteful number, since it uses less digits than its factorization.

405270468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30564 (or 30559 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 405270468 is about 20131.3305074454. The cubic root of 405270468 is about 740.0282847723.

The spelling of 405270468 in words is "four hundred five million, two hundred seventy thousand, four hundred sixty-eight".