405000010 has 32 divisors (see below), whose sum is σ = 812514240. Its totient is φ = 144444672.

The previous prime is 404999983. The next prime is 405000041. The reversal of 405000010 is 10000504.

405000010 = 8998² + 8999² + ... + 9002².

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59464 + ... + 65923.

It is an arithmetic number, because the mean of its divisors is an integer number (25391070).

Almost surely, 2^405000010 is an apocalyptic number.

405000010 is an abundant number, since it is smaller than the sum of its proper divisors (407514230).

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

405000010 is a wasteful number, since it uses less digits than its factorization.

405000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125430.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 405000010 is about 20124.6120459501. The cubic root of 405000010 is about 739.8636283886.

Adding to 405000010 its product of nonzero digits (20), we get a triangular number (405000030 = T₂₈₄₆₀).

Adding to 405000010 its reverse (10000504), we get a palindrome (415000514).

The spelling of 405000010 in words is "four hundred five million, ten", and thus it is an aban number.