45447422 has 4 divisors (see below), whose sum is σ = 68171136. Its totient is φ = 22723710.

The previous prime is 45447419. The next prime is 45447427. The reversal of 45447422 is 22474454.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45447427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361854 + ... + 11361857.

It is an arithmetic number, because the mean of its divisors is an integer number (17042784).

Almost surely, 2^45447422 is an apocalyptic number.

45447422 is a deficient number, since it is larger than the sum of its proper divisors (22723714).

45447422 is a wasteful number, since it uses less digits than its factorization.

45447422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723713.

The product of its digits is 35840, while the sum is 32.

The square root of 45447422 is about 6741.4703144047. The cubic root of 45447422 is about 356.8642836895.

The spelling of 45447422 in words is "forty-five million, four hundred forty-seven thousand, four hundred twenty-two".