45225442 has 8 divisors (see below), whose sum is σ = 70177500. Its totient is φ = 21832944.

The previous prime is 45225407. The next prime is 45225449. The reversal of 45225442 is 24452254.

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 4661281 = 6369^2 + 2159^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 45225442.

It is not an unprimeable number, because it can be changed into a prime (45225449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389817 + ... + 389932.

Almost surely, 2^45225442 is an apocalyptic number.

45225442 is a deficient number, since it is larger than the sum of its proper divisors (24952058).

45225442 is a wasteful number, since it uses less digits than its factorization.

45225442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779780.

The product of its digits is 12800, while the sum is 28.

The square root of 45225442 is about 6724.9863940383. The cubic root of 45225442 is about 356.2823213929.

Adding to 45225442 its reverse (24452254), we get a palindrome (69677696).

The spelling of 45225442 in words is "forty-five million, two hundred twenty-five thousand, four hundred forty-two".