45378212 has 12 divisors (see below), whose sum is σ = 86631216. Its totient is φ = 20626440.

The previous prime is 45378211. The next prime is 45378217. The reversal of 45378212 is 21287354.

It is not an unprimeable number, because it can be changed into a prime (45378211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515618 + ... + 515705.

It is an arithmetic number, because the mean of its divisors is an integer number (7219268).

Almost surely, 2^45378212 is an apocalyptic number.

It is an amenable number.

45378212 is a deficient number, since it is larger than the sum of its proper divisors (41253004).

45378212 is a wasteful number, since it uses less digits than its factorization.

45378212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031338 (or 1031336 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 45378212 is about 6736.3352054363. The cubic root of 45378212 is about 356.6830403679.

The spelling of 45378212 in words is "forty-five million, three hundred seventy-eight thousand, two hundred twelve".