44223987 has 16 divisors (see below), whose sum is σ = 62573472. Its totient is φ = 27686400.

The previous prime is 44223973. The next prime is 44224003. The reversal of 44223987 is 78932244.

It is not a de Polignac number, because 44223987 - 2⁷ = 44223859 is a prime.

It is a super-2 number, since 2×44223987² = 3911522052352338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44223937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35133 + ... + 36369.

It is an arithmetic number, because the mean of its divisors is an integer number (3910842).

Almost surely, 2^44223987 is an apocalyptic number.

44223987 is a deficient number, since it is larger than the sum of its proper divisors (18349485).

44223987 is a wasteful number, since it uses less digits than its factorization.

44223987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its digits is 96768, while the sum is 39.

The square root of 44223987 is about 6650.1118035714. Note that the first 3 decimals coincide. The cubic root of 44223987 is about 353.6328745250.

The spelling of 44223987 in words is "forty-four million, two hundred twenty-three thousand, nine hundred eighty-seven".