45221456 has 40 divisors (see below), whose sum is σ = 101523264. Its totient is φ = 19111680.

The previous prime is 45221453. The next prime is 45221461. The reversal of 45221456 is 65412254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45221453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5411 + ... + 10941.

Almost surely, 2^45221456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45221456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50761632).

45221456 is an abundant number, since it is smaller than the sum of its proper divisors (56301808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45221456 is a wasteful number, since it uses less digits than its factorization.

45221456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5613 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 45221456 is about 6724.6900300311. The cubic root of 45221456 is about 356.2718539584.

The spelling of 45221456 in words is "forty-five million, two hundred twenty-one thousand, four hundred fifty-six".