45404242 has 8 divisors (see below), whose sum is σ = 73345356. Its totient is φ = 20955792.

The previous prime is 45404239. The next prime is 45404257. The reversal of 45404242 is 24240454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37344321 + 8059921 = 6111^2 + 2839^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 873133 + ... + 873184.

Almost surely, 2^45404242 is an apocalyptic number.

45404242 is a deficient number, since it is larger than the sum of its proper divisors (27941114).

45404242 is a wasteful number, since it uses less digits than its factorization.

45404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746332.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 45404242 is about 6738.2669878835. The cubic root of 45404242 is about 356.7512278998.

Adding to 45404242 its reverse (24240454), we get a palindrome (69644696).

The spelling of 45404242 in words is "forty-five million, four hundred four thousand, two hundred forty-two".