45144394 has 4 divisors (see below), whose sum is σ = 67716594. Its totient is φ = 22572196.

The previous prime is 45144371. The next prime is 45144431. The reversal of 45144394 is 49344154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 22439169 = 4765^2 + 4737^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286097 + ... + 11286100.

Almost surely, 2^45144394 is an apocalyptic number.

45144394 is a deficient number, since it is larger than the sum of its proper divisors (22572200).

45144394 is a wasteful number, since it uses less digits than its factorization.

45144394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22572199.

The product of its digits is 34560, while the sum is 34.

The square root of 45144394 is about 6718.9578060887. The cubic root of 45144394 is about 356.0693642982.

The spelling of 45144394 in words is "forty-five million, one hundred forty-four thousand, three hundred ninety-four".