45630212 has 12 divisors (see below), whose sum is σ = 81800796. Its totient is φ = 22258560.

The previous prime is 45630199. The next prime is 45630223. The reversal of 45630212 is 21203654.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 35808256 = 3134^2 + 5984^2 .

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, 138953 + ... + 139280.

It is an arithmetic number, because the mean of its divisors is an integer number (6816733).

Almost surely, 2^45630212 is an apocalyptic number.

It is an amenable number.

45630212 is a deficient number, since it is larger than the sum of its proper divisors (36170584).

45630212 is a wasteful number, since it uses less digits than its factorization.

45630212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278278 (or 278276 counting only the distinct ones).

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

The square root of 45630212 is about 6755.0138415846. The cubic root of 45630212 is about 357.3420809689.

Adding to 45630212 its reverse (21203654), we get a palindrome (66833866).

The spelling of 45630212 in words is "forty-five million, six hundred thirty thousand, two hundred twelve".