45404212 has 72 divisors (see below), whose sum is σ = 100126208. Its totient is φ = 17625600.

The previous prime is 45404123. The next prime is 45404213. The reversal of 45404212 is 21240454.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45404213) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 250762 + ... + 250942.

Almost surely, 2^45404212 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 45404212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50063104).

45404212 is an abundant number, since it is smaller than the sum of its proper divisors (54721996).

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

45404212 is a wasteful number, since it uses less digits than its factorization.

45404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45404212 is about 6738.2647617914. The cubic root of 45404212 is about 356.7511493276.

Adding to 45404212 its reverse (21240454), we get a palindrome (66644666).

The spelling of 45404212 in words is "forty-five million, four hundred four thousand, two hundred twelve".