45512238 has 8 divisors (see below), whose sum is σ = 91024488. Its totient is φ = 15170744.

The previous prime is 45512237. The next prime is 45512249. The reversal of 45512238 is 83221554.

It is a sphenic number, since it is the product of 3 distinct primes.

45512238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45512237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792681 + ... + 3792692.

It is an arithmetic number, because the mean of its divisors is an integer number (11378061).

Almost surely, 2^45512238 is an apocalyptic number.

45512238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45512238 is a wasteful number, since it uses less digits than its factorization.

45512238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585378.

The product of its digits is 9600, while the sum is 30.

The square root of 45512238 is about 6746.2758615402. The cubic root of 45512238 is about 357.0338534696.

The spelling of 45512238 in words is "forty-five million, five hundred twelve thousand, two hundred thirty-eight".