45318442 has 8 divisors (see below), whose sum is σ = 73206756. Its totient is φ = 20916192.

The previous prime is 45318433. The next prime is 45318443. The reversal of 45318442 is 24481354.

It can be written as a sum of positive squares in 2 ways, for example, as 40691641 + 4626801 = 6379^2 + 2151^2 .

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

It is a super-2 number, since 2×45318442² = 4107522370614728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45318443) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 871483 + ... + 871534.

Almost surely, 2^45318442 is an apocalyptic number.

45318442 is a deficient number, since it is larger than the sum of its proper divisors (27888314).

45318442 is a wasteful number, since it uses less digits than its factorization.

45318442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743032.

The product of its digits is 15360, while the sum is 31.

The square root of 45318442 is about 6731.8973551295. The cubic root of 45318442 is about 356.5263696417.

Adding to 45318442 its reverse (24481354), we get a palindrome (69799796).

The spelling of 45318442 in words is "forty-five million, three hundred eighteen thousand, four hundred forty-two".