45032740 has 12 divisors (see below), whose sum is σ = 94568796. Its totient is φ = 18013088.

The previous prime is 45032731. The next prime is 45032747. The reversal of 45032740 is 4723054.

It can be written as a sum of positive squares in 2 ways, for example, as 28451556 + 16581184 = 5334^2 + 4072^2 .

It is not an unprimeable number, because it can be changed into a prime (45032747) 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, 1125799 + ... + 1125838.

It is an arithmetic number, because the mean of its divisors is an integer number (7880733).

Almost surely, 2^45032740 is an apocalyptic number.

It is an amenable number.

45032740 is an abundant number, since it is smaller than the sum of its proper divisors (49536056).

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

45032740 is a wasteful number, since it uses less digits than its factorization.

45032740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251646 (or 2251644 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 45032740 is about 6710.6437843176. The cubic root of 45032740 is about 355.7755707870.

Adding to 45032740 its reverse (4723054), we get a palindrome (49755794).

The spelling of 45032740 in words is "forty-five million, thirty-two thousand, seven hundred forty".