45221630 has 16 divisors (see below), whose sum is σ = 81481680. Its totient is φ = 18070272.

The previous prime is 45221629. The next prime is 45221651. The reversal of 45221630 is 3612254.

It is a junction number, because it is equal to n+sod(n) for n = 45221596 and 45221605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12686 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (5092605).

Almost surely, 2^45221630 is an apocalyptic number.

45221630 is a deficient number, since it is larger than the sum of its proper divisors (36260050).

45221630 is a wasteful number, since it uses less digits than its factorization.

45221630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 45221630 is about 6724.7029674180. The cubic root of 45221630 is about 356.2723109039.

Adding to 45221630 its reverse (3612254), we get a palindrome (48833884).

The spelling of 45221630 in words is "forty-five million, two hundred twenty-one thousand, six hundred thirty".