45221242 has 8 divisors (see below), whose sum is σ = 73998432. Its totient is φ = 20555100.

The previous prime is 45221227. The next prime is 45221257. The reversal of 45221242 is 24212254.

It is an interprime number because it is at equal distance from previous prime (45221227) and next prime (45221257).

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 2055511 = 45221242 / (4 + 5 + 2 + 2 + 1 + 2 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027734 + ... + 1027777.

It is an arithmetic number, because the mean of its divisors is an integer number (9249804).

Almost surely, 2^45221242 is an apocalyptic number.

45221242 is a deficient number, since it is larger than the sum of its proper divisors (28777190).

45221242 is a wasteful number, since it uses less digits than its factorization.

45221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055524.

The product of its digits is 1280, while the sum is 22.

The square root of 45221242 is about 6724.6741184982. The cubic root of 45221242 is about 356.2712919664.

Adding to 45221242 its reverse (24212254), we get a palindrome (69433496).

It can be divided in two parts, 452212 and 42, that added together give a palindrome (452254).

The spelling of 45221242 in words is "forty-five million, two hundred twenty-one thousand, two hundred forty-two".