44139958 has 8 divisors (see below), whose sum is σ = 66238128. Its totient is φ = 22060584.

The previous prime is 44139889. The next prime is 44140009. The reversal of 44139958 is 85993144.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6960 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (8279766).

Almost surely, 2^44139958 is an apocalyptic number.

44139958 is a deficient number, since it is larger than the sum of its proper divisors (22098170).

44139958 is a wasteful number, since it uses less digits than its factorization.

44139958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9398.

The product of its digits is 155520, while the sum is 43.

The square root of 44139958 is about 6643.7909359040. The cubic root of 44139958 is about 353.4087559018.

The spelling of 44139958 in words is "forty-four million, one hundred thirty-nine thousand, nine hundred fifty-eight".