44001397 has 8 divisors (see below), whose sum is σ = 50528160. Its totient is φ = 37895760.

The previous prime is 44001311. The next prime is 44001403. The reversal of 44001397 is 79310044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44001397 is a prime.

It is a super-2 number, since 2×44001397² = 3872245875903218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44002397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105058 + ... + 105475.

It is an arithmetic number, because the mean of its divisors is an integer number (6316020).

Almost surely, 2^44001397 is an apocalyptic number.

It is an amenable number.

44001397 is a deficient number, since it is larger than the sum of its proper divisors (6526763).

44001397 is a wasteful number, since it uses less digits than its factorization.

44001397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210563.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 44001397 is about 6633.3548827121. The cubic root of 44001397 is about 353.0385697784.

The spelling of 44001397 in words is "forty-four million, one thousand, three hundred ninety-seven".