44457481 has 2 divisors, whose sum is σ = 44457482. Its totient is φ = 44457480.

The previous prime is 44457467. The next prime is 44457509. The reversal of 44457481 is 18475444.

It is a happy number.

44457481 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32319225 + 12138256 = 5685^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 44457481 - 2⁵ = 44457449 is a prime.

It is a super-2 number, since 2×44457481² = 3952935233730722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44457481.

It is not a weakly prime, because it can be changed into another prime (44457421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22228740 + 22228741.

It is an arithmetic number, because the mean of its divisors is an integer number (22228741).

Almost surely, 2^44457481 is an apocalyptic number.

It is an amenable number.

44457481 is a deficient number, since it is larger than the sum of its proper divisors (1).

44457481 is an equidigital number, since it uses as much as digits as its factorization.

44457481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71680, while the sum is 37.

The square root of 44457481 is about 6667.6443366454. The cubic root of 44457481 is about 354.2541531938.

The spelling of 44457481 in words is "forty-four million, four hundred fifty-seven thousand, four hundred eighty-one".