45278233 has 16 divisors (see below), whose sum is σ = 60794496. Its totient is φ = 32567040.

The previous prime is 45278221. The next prime is 45278239. The reversal of 45278233 is 33287254.

It is not a de Polignac number, because 45278233 - 2⁵ = 45278201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45278239) 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, 21616 + ... + 23617.

It is an arithmetic number, because the mean of its divisors is an integer number (3799656).

Almost surely, 2^45278233 is an apocalyptic number.

It is an amenable number.

45278233 is a deficient number, since it is larger than the sum of its proper divisors (15516263).

45278233 is a wasteful number, since it uses less digits than its factorization.

45278233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45264.

The product of its digits is 40320, while the sum is 34.

The square root of 45278233 is about 6728.9102386642. The cubic root of 45278233 is about 356.4208952107.

The spelling of 45278233 in words is "forty-five million, two hundred seventy-eight thousand, two hundred thirty-three".