409242328656 has 40 divisors (see below), whose sum is σ = 1208239257024. Its totient is φ = 116926379520.

The previous prime is 409242328643. The next prime is 409242328657. The reversal of 409242328656 is 656823242904.

It is a junction number, because it is equal to n+sod(n) for n = 409242328599 and 409242328608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409242328657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608991225 + ... + 608991896.

Almost surely, 2^409242328656 is an apocalyptic number.

It is an amenable number.

409242328656 is an abundant number, since it is smaller than the sum of its proper divisors (798996928368).

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

409242328656 is a wasteful number, since it uses less digits than its factorization.

409242328656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217983139 (or 1217983133 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 409242328656 in words is "four hundred nine billion, two hundred forty-two million, three hundred twenty-eight thousand, six hundred fifty-six".