409749516740 has 48 divisors (see below), whose sum is σ = 900194480640. Its totient is φ = 156370642560.

The previous prime is 409749516739. The next prime is 409749516821. The reversal of 409749516740 is 47615947904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965996 + ... + 1323875.

It is an arithmetic number, because the mean of its divisors is an integer number (18754051680).

Almost surely, 2^409749516740 is an apocalyptic number.

It is an amenable number.

409749516740 is an abundant number, since it is smaller than the sum of its proper divisors (490444963900).

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

409749516740 is a wasteful number, since it uses less digits than its factorization.

409749516740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290292 (or 2290290 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 409749516740 in words is "four hundred nine billion, seven hundred forty-nine million, five hundred sixteen thousand, seven hundred forty".