44640246436 has 12 divisors (see below), whose sum is σ = 78464575728. Its totient is φ = 22221796232.

The previous prime is 44640246403. The next prime is 44640246437. The reversal of 44640246436 is 63464204644.

It is a junction number, because it is equal to n+sod(n) for n = 44640246392 and 44640246401.

It is not an unprimeable number, because it can be changed into a prime (44640246437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24580726 + ... + 24582541.

It is an arithmetic number, because the mean of its divisors is an integer number (6538714644).

Almost surely, 2^44640246436 is an apocalyptic number.

It is an amenable number.

44640246436 is a deficient number, since it is larger than the sum of its proper divisors (33824329292).

44640246436 is a wasteful number, since it uses less digits than its factorization.

44640246436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49163498 (or 49163496 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 43.

The spelling of 44640246436 in words is "forty-four billion, six hundred forty million, two hundred forty-six thousand, four hundred thirty-six".