45313290 has 192 divisors, whose sum is σ = 141724800. Its totient is φ = 10264320.

The previous prime is 45313277. The next prime is 45313291. The reversal of 45313290 is 9231354.

45313290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45313291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620694 + ... + 620766.

It is an arithmetic number, because the mean of its divisors is an integer number (738150).

Almost surely, 2^45313290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45313290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70862400).

45313290 is an abundant number, since it is smaller than the sum of its proper divisors (96411510).

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

45313290 is a wasteful number, since it uses less digits than its factorization.

45313290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 45313290 is about 6731.5146883892. The cubic root of 45313290 is about 356.5128586340.

The spelling of 45313290 in words is "forty-five million, three hundred thirteen thousand, two hundred ninety".