44093721 has 32 divisors (see below), whose sum is σ = 69154560. Its totient is φ = 24470784.

The previous prime is 44093713. The next prime is 44093723. The reversal of 44093721 is 12739044.

It is a happy number.

It is not a de Polignac number, because 44093721 - 2³ = 44093713 is a prime.

It is a super-3 number, since 3×44093721³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (44093723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192435 + ... + 192663.

It is an arithmetic number, because the mean of its divisors is an integer number (2161080).

Almost surely, 2^44093721 is an apocalyptic number.

It is an amenable number.

44093721 is a deficient number, since it is larger than the sum of its proper divisors (25060839).

44093721 is a wasteful number, since it uses less digits than its factorization.

44093721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 44093721 is about 6640.3103090142. The cubic root of 44093721 is about 353.2853131806.

The spelling of 44093721 in words is "forty-four million, ninety-three thousand, seven hundred twenty-one".