406408944 has 80 divisors (see below), whose sum is σ = 1065804800. Its totient is φ = 133436160.

The previous prime is 406408927. The next prime is 406408963. The reversal of 406408944 is 449804604.

It is a congruent number.

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, 1499529 + ... + 1499799.

It is an arithmetic number, because the mean of its divisors is an integer number (13322560).

Almost surely, 2^406408944 is an apocalyptic number.

It is an amenable number.

406408944 is an abundant number, since it is smaller than the sum of its proper divisors (659395856).

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

406408944 is a wasteful number, since it uses less digits than its factorization.

406408944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 406408944 is about 20159.5869005295. The cubic root of 406408944 is about 740.7205934258.

The spelling of 406408944 in words is "four hundred six million, four hundred eight thousand, nine hundred forty-four".