44912381 has 4 divisors (see below), whose sum is σ = 45105372. Its totient is φ = 44719392.

The previous prime is 44912363. The next prime is 44912411. The reversal of 44912381 is 18321944.

It is a happy number.

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 32024281 + 12888100 = 5659^2 + 3590^2 .

It is a cyclic number.

It is not a de Polignac number, because 44912381 - 2¹⁰ = 44911357 is a prime.

It is a super-2 number, since 2×44912381² = 4034243934178322, 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 (44912321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96146 + ... + 96611.

It is an arithmetic number, because the mean of its divisors is an integer number (11276343).

Almost surely, 2^44912381 is an apocalyptic number.

It is an amenable number.

44912381 is a deficient number, since it is larger than the sum of its proper divisors (192991).

44912381 is a wasteful number, since it uses less digits than its factorization.

44912381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192990.

The product of its digits is 6912, while the sum is 32.

The square root of 44912381 is about 6701.6700157498. The cubic root of 44912381 is about 355.4583275419.

The spelling of 44912381 in words is "forty-four million, nine hundred twelve thousand, three hundred eighty-one".