44252161 has 16 divisors (see below), whose sum is σ = 47755008. Its totient is φ = 40902400.

The previous prime is 44252149. The next prime is 44252171. The reversal of 44252161 is 16125244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 44252161 - 2⁵ = 44252129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44252101) 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, 157341 + ... + 157621.

It is an arithmetic number, because the mean of its divisors is an integer number (2984688).

Almost surely, 2^44252161 is an apocalyptic number.

44252161 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

44252161 is the 3841-st octagonal number.

It is an amenable number.

44252161 is a deficient number, since it is larger than the sum of its proper divisors (3502847).

44252161 is a wasteful number, since it uses less digits than its factorization.

44252161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its digits is 1920, while the sum is 25.

The square root of 44252161 is about 6652.2297765486. The cubic root of 44252161 is about 353.7079554804.

The spelling of 44252161 in words is "forty-four million, two hundred fifty-two thousand, one hundred sixty-one".