64826380 has 24 divisors (see below), whose sum is σ = 136287648. Its totient is φ = 25901568.

The previous prime is 64826329. The next prime is 64826383. The reversal of 64826380 is 8362846.

64826380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64826383) 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 7 ways as a sum of consecutive naturals, for example, 31132 + ... + 33148.

It is an arithmetic number, because the mean of its divisors is an integer number (5678652).

Almost surely, 2^64826380 is an apocalyptic number.

It is an amenable number.

64826380 is an abundant number, since it is smaller than the sum of its proper divisors (71461268).

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

64826380 is a wasteful number, since it uses less digits than its factorization.

64826380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 64826380 is about 8051.4830931947. The cubic root of 64826380 is about 401.7142677202.

It can be divided in two parts, 648 and 26380, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 64826380 in words is "sixty-four million, eight hundred twenty-six thousand, three hundred eighty".