45440656 has 10 divisors (see below), whose sum is σ = 88041302. Its totient is φ = 22720320.

The previous prime is 45440621. The next prime is 45440657. The reversal of 45440656 is 65604454.

45440656 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 only one way, i.e., 30074256 + 15366400 = 5484^2 + 3920^2 .

It is not an unprimeable number, because it can be changed into a prime (45440657) 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 as a sum of consecutive naturals, namely, 1420005 + ... + 1420036.

Almost surely, 2^45440656 is an apocalyptic number.

It is an amenable number.

45440656 is a deficient number, since it is larger than the sum of its proper divisors (42600646).

45440656 is a wasteful number, since it uses less digits than its factorization.

45440656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840049 (or 2840043 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 45440656 is about 6740.9684764135. The cubic root of 45440656 is about 356.8465733812.

The spelling of 45440656 in words is "forty-five million, four hundred forty thousand, six hundred fifty-six".