406904616 has 24 divisors (see below), whose sum is σ = 1102033530. Its totient is φ = 135634848.

The previous prime is 406904573. The next prime is 406904669. The reversal of 406904616 is 616409604.

It can be written as a sum of positive squares in only one way, i.e., 401842116 + 5062500 = 20046^2 + 2250^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 2825655 + ... + 2825798.

Almost surely, 2^406904616 is an apocalyptic number.

It is an amenable number.

406904616 is an abundant number, since it is smaller than the sum of its proper divisors (695128914).

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

406904616 is a wasteful number, since it uses less digits than its factorization.

406904616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651465 (or 5651458 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 406904616 is about 20171.8768586366. The cubic root of 406904616 is about 741.0216082035.

The spelling of 406904616 in words is "four hundred six million, nine hundred four thousand, six hundred sixteen".