44640223 has 2 divisors, whose sum is σ = 44640224. Its totient is φ = 44640222.

The previous prime is 44640203. The next prime is 44640229. The reversal of 44640223 is 32204644.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44640223 - 2¹³ = 44632031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44640229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22320111 + 22320112.

It is an arithmetic number, because the mean of its divisors is an integer number (22320112).

Almost surely, 2^44640223 is an apocalyptic number.

44640223 is a deficient number, since it is larger than the sum of its proper divisors (1).

44640223 is an equidigital number, since it uses as much as digits as its factorization.

44640223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 44640223 is about 6681.3339237012. Note that the first 3 decimals coincide. The cubic root of 44640223 is about 354.7388756193.

Adding to 44640223 its reverse (32204644), we get a palindrome (76844867).

It can be divided in two parts, 446402 and 23, that multiplied together give a triangular number (10267246 = T₄₅₃₁).

The spelling of 44640223 in words is "forty-four million, six hundred forty thousand, two hundred twenty-three".