44400213646 has 8 divisors (see below), whose sum is σ = 67729139640. Its totient is φ = 21823833768.

The previous prime is 44400213623. The next prime is 44400213691. The reversal of 44400213646 is 64631200444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×44400213646² (a number of 22 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 3 ways as a sum of consecutive naturals, for example, 188136381 + ... + 188136616.

It is an arithmetic number, because the mean of its divisors is an integer number (8466142455).

Almost surely, 2^44400213646 is an apocalyptic number.

44400213646 is a deficient number, since it is larger than the sum of its proper divisors (23328925994).

44400213646 is a wasteful number, since it uses less digits than its factorization.

44400213646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376273058.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 44400213646 in words is "forty-four billion, four hundred million, two hundred thirteen thousand, six hundred forty-six".