405960894 has 24 divisors (see below), whose sum is σ = 879967920. Its totient is φ = 135260928.

The previous prime is 405960883. The next prime is 405960899. The reversal of 405960894 is 498069504.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405960899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60894 + ... + 67230.

It is an arithmetic number, because the mean of its divisors is an integer number (36665330).

Almost surely, 2^405960894 is an apocalyptic number.

405960894 is an abundant number, since it is smaller than the sum of its proper divisors (474007026).

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

405960894 is a wasteful number, since it uses less digits than its factorization.

405960894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904 (or 9901 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 405960894 is about 20148.4712571450. The cubic root of 405960894 is about 740.4482881505.

The spelling of 405960894 in words is "four hundred five million, nine hundred sixty thousand, eight hundred ninety-four".