45212228 has 6 divisors (see below), whose sum is σ = 79121406. Its totient is φ = 22606112.

The previous prime is 45212213. The next prime is 45212263. The reversal of 45212228 is 82221254.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 1149184 = 6638^2 + 1072^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45212197 and 45212206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651525 + ... + 5651532.

It is an arithmetic number, because the mean of its divisors is an integer number (13186901).

Almost surely, 2^45212228 is an apocalyptic number.

It is an amenable number.

45212228 is a deficient number, since it is larger than the sum of its proper divisors (33909178).

45212228 is a wasteful number, since it uses less digits than its factorization.

45212228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11303061 (or 11303059 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 45212228 is about 6724.0038667449. The cubic root of 45212228 is about 356.2476184103.

The spelling of 45212228 in words is "forty-five million, two hundred twelve thousand, two hundred twenty-eight".