409449503839740 has 144 divisors (see below), whose sum is σ = 1436222875141152. Its totient is φ = 86389345857024.

The previous prime is 409449503839697. The next prime is 409449503839751. The reversal of 409449503839740 is 47938305944904.

It is a super-2 number, since 2×409449503839740² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5356444039 + ... + 5356520478.

It is an arithmetic number, because the mean of its divisors is an integer number (9973769966258).

Almost surely, 2^{409449503839740} is an apocalyptic number.

It is an amenable number.

409449503839740 is an abundant number, since it is smaller than the sum of its proper divisors (1026773371301412).

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

409449503839740 is a wasteful number, since it uses less digits than its factorization.

409449503839740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712964556 (or 10712964547 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 69.

The spelling of 409449503839740 in words is "four hundred nine trillion, four hundred forty-nine billion, five hundred three million, eight hundred thirty-nine thousand, seven hundred forty".