44736881 has 4 divisors (see below), whose sum is σ = 51127872. Its totient is φ = 38345892.

The previous prime is 44736869. The next prime is 44736889. The reversal of 44736881 is 18863744.

Added to its reverse (18863744) it gives a square (63600625 = 7975²).

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 44736881 - 2¹⁴ = 44720497 is a prime.

It is a super-2 number, since 2×44736881² = 4002777043216322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44736889) 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, 3195485 + ... + 3195498.

It is an arithmetic number, because the mean of its divisors is an integer number (12781968).

Almost surely, 2^44736881 is an apocalyptic number.

It is an amenable number.

44736881 is a deficient number, since it is larger than the sum of its proper divisors (6390991).

44736881 is an equidigital number, since it uses as much as digits as its factorization.

44736881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390990.

The product of its digits is 129024, while the sum is 41.

The square root of 44736881 is about 6688.5634481554. The cubic root of 44736881 is about 354.9947258358.

Adding to 44736881 its reverse (18863744), we get a square (63600625 = 7975²).

The spelling of 44736881 in words is "forty-four million, seven hundred thirty-six thousand, eight hundred eighty-one".