44390393 has 4 divisors (see below), whose sum is σ = 44418660. Its totient is φ = 44362128.

The previous prime is 44390369. The next prime is 44390429. The reversal of 44390393 is 39309344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32809984 + 11580409 = 5728^2 + 3403^2 .

It is a cyclic number.

It is not a de Polignac number, because 44390393 - 2¹⁰ = 44389369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44390303) 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, 11630 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (11104665).

Almost surely, 2^44390393 is an apocalyptic number.

It is an amenable number.

44390393 is a deficient number, since it is larger than the sum of its proper divisors (28267).

44390393 is a wasteful number, since it uses less digits than its factorization.

44390393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28266.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 44390393 is about 6662.6115750507. The cubic root of 44390393 is about 354.0758692334.

The spelling of 44390393 in words is "forty-four million, three hundred ninety thousand, three hundred ninety-three".