406009757388 has 48 divisors (see below), whose sum is σ = 987598402560. Its totient is φ = 129674136000.

The previous prime is 406009757359. The next prime is 406009757393. The reversal of 406009757388 is 883757900604.

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, 5365518 + ... + 5440661.

It is an arithmetic number, because the mean of its divisors is an integer number (20574966720).

Almost surely, 2^406009757388 is an apocalyptic number.

It is an amenable number.

406009757388 is an abundant number, since it is smaller than the sum of its proper divisors (581588645172).

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

406009757388 is a wasteful number, since it uses less digits than its factorization.

406009757388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806318 (or 10806316 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 406009757388 in words is "four hundred six billion, nine million, seven hundred fifty-seven thousand, three hundred eighty-eight".