405248064 has 56 divisors (see below), whose sum is σ = 1154704320. Its totient is φ = 124690944.

The previous prime is 405248047. The next prime is 405248069. The reversal of 405248064 is 460842504.

It is not an unprimeable number, because it can be changed into a prime (405248069) 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, 78684 + ... + 83675.

It is an arithmetic number, because the mean of its divisors is an integer number (20619720).

Almost surely, 2^405248064 is an apocalyptic number.

It is an amenable number.

405248064 is an abundant number, since it is smaller than the sum of its proper divisors (749456256).

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

405248064 is a wasteful number, since it uses less digits than its factorization.

405248064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162387 (or 162377 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 405248064 is about 20130.7740536722. The cubic root of 405248064 is about 740.0146478717.

The spelling of 405248064 in words is "four hundred five million, two hundred forty-eight thousand, sixty-four".