44001656 has 16 divisors (see below), whose sum is σ = 82609800. Its totient is φ = 21972384.

The previous prime is 44001653. The next prime is 44001667. The reversal of 44001656 is 65610044.

It is a happy number.

It is a super-2 number, since 2×44001656² = 3872291461484672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44001653) 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, 3950 + ... + 10178.

Almost surely, 2^44001656 is an apocalyptic number.

It is an amenable number.

44001656 is a deficient number, since it is larger than the sum of its proper divisors (38608144).

44001656 is a wasteful number, since it uses less digits than its factorization.

44001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7114 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 44001656 is about 6633.3744052330. The cubic root of 44001656 is about 353.0392624595.

The spelling of 44001656 in words is "forty-four million, one thousand, six hundred fifty-six".