45450423 has 16 divisors (see below), whose sum is σ = 67529440. Its totient is φ = 30212352.

The previous prime is 45450421. The next prime is 45450439. The reversal of 45450423 is 32405454.

It is not a de Polignac number, because 45450423 - 2¹ = 45450421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45450421) 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, 7815 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (4220590).

Almost surely, 2^45450423 is an apocalyptic number.

45450423 is a deficient number, since it is larger than the sum of its proper divisors (22079017).

45450423 is a wasteful number, since it uses less digits than its factorization.

45450423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 45450423 is about 6741.6928882885. The cubic root of 45450423 is about 356.8721383789.

Adding to 45450423 its reverse (32405454), we get a palindrome (77855877).

The spelling of 45450423 in words is "forty-five million, four hundred fifty thousand, four hundred twenty-three".