344452400646 has 16 divisors (see below), whose sum is σ = 688939532784. Its totient is φ = 114811678304.

The previous prime is 344452400627. The next prime is 344452400651. The reversal of 344452400646 is 646004254443.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 344452400598 and 344452400607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317321 + ... + 1556996.

It is an arithmetic number, because the mean of its divisors is an integer number (43058720799).

Almost surely, 2^344452400646 is an apocalyptic number.

344452400646 is an abundant number, since it is smaller than the sum of its proper divisors (344487132138).

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

344452400646 is a wasteful number, since it uses less digits than its factorization.

344452400646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894295.

The product of its (nonzero) digits is 1105920, while the sum is 42.

The spelling of 344452400646 in words is "three hundred forty-four billion, four hundred fifty-two million, four hundred thousand, six hundred forty-six".