45042394 has 32 divisors (see below), whose sum is σ = 72777600. Its totient is φ = 20865600.

The previous prime is 45042391. The next prime is 45042419. The reversal of 45042394 is 49324054.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45042391) 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, 298219 + ... + 298369.

It is an arithmetic number, because the mean of its divisors is an integer number (2274300).

Almost surely, 2^45042394 is an apocalyptic number.

45042394 is a deficient number, since it is larger than the sum of its proper divisors (27735206).

45042394 is a wasteful number, since it uses less digits than its factorization.

45042394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 45042394 is about 6711.3630508266. The cubic root of 45042394 is about 355.8009923799.

The spelling of 45042394 in words is "forty-five million, forty-two thousand, three hundred ninety-four".