408957894 has 24 divisors (see below), whose sum is σ = 924601392. Its totient is φ = 130392240.

The previous prime is 408957893. The next prime is 408957949. The reversal of 408957894 is 498759804.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 408957894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408957893) 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, 493497 + ... + 494324.

It is an arithmetic number, because the mean of its divisors is an integer number (38525058).

Almost surely, 2^408957894 is an apocalyptic number.

408957894 is an abundant number, since it is smaller than the sum of its proper divisors (515643498).

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

408957894 is a wasteful number, since it uses less digits than its factorization.

408957894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987852 (or 987849 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 408957894 is about 20222.7073855110. The cubic root of 408957894 is about 742.2659385352.

The spelling of 408957894 in words is "four hundred eight million, nine hundred fifty-seven thousand, eight hundred ninety-four".