44481631 has 2 divisors, whose sum is σ = 44481632. Its totient is φ = 44481630.

The previous prime is 44481617. The next prime is 44481637. The reversal of 44481631 is 13618444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44481631 - 2¹⁹ = 43957343 is a prime.

It is a super-2 number, since 2×44481631² = 3957230992840322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44481593 and 44481602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44481637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22240815 + 22240816.

It is an arithmetic number, because the mean of its divisors is an integer number (22240816).

Almost surely, 2^44481631 is an apocalyptic number.

44481631 is a deficient number, since it is larger than the sum of its proper divisors (1).

44481631 is an equidigital number, since it uses as much as digits as its factorization.

44481631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 44481631 is about 6669.4550751917. The cubic root of 44481631 is about 354.3182870506.

The spelling of 44481631 in words is "forty-four million, four hundred eighty-one thousand, six hundred thirty-one".