45240312 has 64 divisors (see below), whose sum is σ = 123338880. Its totient is φ = 13744512.

The previous prime is 45240301. The next prime is 45240313. The reversal of 45240312 is 21304254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25023 + ... + 26769.

It is an arithmetic number, because the mean of its divisors is an integer number (1927170).

Almost surely, 2^45240312 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 45240312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61669440).

45240312 is an abundant number, since it is smaller than the sum of its proper divisors (78098568).

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

45240312 is a wasteful number, since it uses less digits than its factorization.

45240312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 45240312 is about 6726.0918816204. The cubic root of 45240312 is about 356.3213653274.

Adding to 45240312 its reverse (21304254), we get a palindrome (66544566).

The spelling of 45240312 in words is "forty-five million, two hundred forty thousand, three hundred twelve".