64375400 has 48 divisors (see below), whose sum is σ = 151097100. Its totient is φ = 25505280.

The previous prime is 64375397. The next prime is 64375427. The reversal of 64375400 is 457346.

64375400 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 6 ways, for example, as 40424164 + 23951236 = 6358^2 + 4894^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 20324 + ... + 23276.

Almost surely, 2^64375400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64375400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75548550).

64375400 is an abundant number, since it is smaller than the sum of its proper divisors (86721700).

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

64375400 is a wasteful number, since it uses less digits than its factorization.

64375400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 64375400 is about 8023.4281949800. The cubic root of 64375400 is about 400.7805591610.

The spelling of 64375400 in words is "sixty-four million, three hundred seventy-five thousand, four hundred".