44121601 has 4 divisors (see below), whose sum is σ = 44743104. Its totient is φ = 43500100.

The previous prime is 44121593. The next prime is 44121611. The reversal of 44121601 is 10612144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44121601 - 2³ = 44121593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44121611) 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, 310645 + ... + 310786.

It is an arithmetic number, because the mean of its divisors is an integer number (11185776).

Almost surely, 2^44121601 is an apocalyptic number.

It is an amenable number.

44121601 is a deficient number, since it is larger than the sum of its proper divisors (621503).

44121601 is an equidigital number, since it uses as much as digits as its factorization.

44121601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621502.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 44121601 is about 6642.4092767610. The cubic root of 44121601 is about 353.3597570326.

Adding to 44121601 its reverse (10612144), we get a palindrome (54733745).

The spelling of 44121601 in words is "forty-four million, one hundred twenty-one thousand, six hundred one".