45423399 has 16 divisors (see below), whose sum is σ = 69622272. Its totient is φ = 25804128.

The previous prime is 45423379. The next prime is 45423407. The reversal of 45423399 is 99332454.

It is not a de Polignac number, because 45423399 - 2⁹ = 45422887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45423349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2619 + ... + 9884.

It is an arithmetic number, because the mean of its divisors is an integer number (4351392).

Almost surely, 2^45423399 is an apocalyptic number.

45423399 is a deficient number, since it is larger than the sum of its proper divisors (24198873).

45423399 is a wasteful number, since it uses less digits than its factorization.

45423399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12686.

The product of its digits is 116640, while the sum is 39.

The square root of 45423399 is about 6739.6883459104. The cubic root of 45423399 is about 356.8013944483.

The spelling of 45423399 in words is "forty-five million, four hundred twenty-three thousand, three hundred ninety-nine".