45992289 has 16 divisors (see below), whose sum is σ = 72501120. Its totient is φ = 25374720.

The previous prime is 45992257. The next prime is 45992291. The reversal of 45992289 is 98229954.

It is a happy number.

It is not a de Polignac number, because 45992289 - 2⁵ = 45992257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45992239) 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, 37152 + ... + 38369.

It is an arithmetic number, because the mean of its divisors is an integer number (4531320).

Almost surely, 2^45992289 is an apocalyptic number.

It is an amenable number.

45992289 is a deficient number, since it is larger than the sum of its proper divisors (26508831).

45992289 is a wasteful number, since it uses less digits than its factorization.

45992289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75560.

The product of its digits is 466560, while the sum is 48.

The square root of 45992289 is about 6781.7614968384. The cubic root of 45992289 is about 358.2847650537.

The spelling of 45992289 in words is "forty-five million, nine hundred ninety-two thousand, two hundred eighty-nine".