64456450 has 12 divisors (see below), whose sum is σ = 119889090. Its totient is φ = 25782560.

The previous prime is 64456439. The next prime is 64456451. The reversal of 64456450 is 5465446.

64456450 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 3 ways, for example, as 26842761 + 37613689 = 5181^2 + 6133^2 .

It is a super-3 number, since 3×64456450³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64456451) 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 5 ways as a sum of consecutive naturals, for example, 644515 + ... + 644614.

Almost surely, 2^64456450 is an apocalyptic number.

64456450 is a deficient number, since it is larger than the sum of its proper divisors (55432640).

64456450 is a wasteful number, since it uses less digits than its factorization.

64456450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289141 (or 1289136 counting only the distinct ones).

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

The square root of 64456450 is about 8028.4774397142. The cubic root of 64456450 is about 400.9486857098.

The spelling of 64456450 in words is "sixty-four million, four hundred fifty-six thousand, four hundred fifty".