45715240 has 16 divisors (see below), whose sum is σ = 102859380. Its totient is φ = 18286080.

The previous prime is 45715217. The next prime is 45715247. The reversal of 45715240 is 4251754.

45715240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40525956 + 5189284 = 6366^2 + 2278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45715199 and 45715208.

It is not an unprimeable number, because it can be changed into a prime (45715247) 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 3 ways as a sum of consecutive naturals, for example, 571401 + ... + 571480.

Almost surely, 2^45715240 is an apocalyptic number.

45715240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45715240 is an abundant number, since it is smaller than the sum of its proper divisors (57144140).

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

45715240 is a wasteful number, since it uses less digits than its factorization.

45715240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142892 (or 1142888 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 45715240 is about 6761.3046078401. The cubic root of 45715240 is about 357.5639020528.

Adding to 45715240 its reverse (4251754), we get a palindrome (49966994).

The spelling of 45715240 in words is "forty-five million, seven hundred fifteen thousand, two hundred forty".