45144338 has 4 divisors (see below), whose sum is σ = 67716510. Its totient is φ = 22572168.

The previous prime is 45144311. The next prime is 45144349. The reversal of 45144338 is 83344154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83344154 = 2 ⋅41672077.

It can be written as a sum of positive squares in only one way, i.e., 38105929 + 7038409 = 6173^2 + 2653^2 .

It is a super-2 number, since 2×45144338² = 4076022506916488, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286083 + ... + 11286086.

Almost surely, 2^45144338 is an apocalyptic number.

45144338 is a deficient number, since it is larger than the sum of its proper divisors (22572172).

45144338 is a wasteful number, since it uses less digits than its factorization.

45144338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22572171.

The product of its digits is 23040, while the sum is 32.

The square root of 45144338 is about 6718.9536387744. The cubic root of 45144338 is about 356.0692170677.

The spelling of 45144338 in words is "forty-five million, one hundred forty-four thousand, three hundred thirty-eight".