40147648444 has 12 divisors (see below), whose sum is σ = 70293900600. Its totient is φ = 20063676848.

The previous prime is 40147648439. The next prime is 40147648483. The reversal of 40147648444 is 44484674104.

It is a super-2 number, since 2×40147648444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40147648394 and 40147648403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527939 + ... + 2543770.

It is an arithmetic number, because the mean of its divisors is an integer number (5857825050).

Almost surely, 2^40147648444 is an apocalyptic number.

It is an amenable number.

40147648444 is a deficient number, since it is larger than the sum of its proper divisors (30146252156).

40147648444 is a wasteful number, since it uses less digits than its factorization.

40147648444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073692 (or 5073690 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 46.

The spelling of 40147648444 in words is "forty billion, one hundred forty-seven million, six hundred forty-eight thousand, four hundred forty-four".