64381070 has 64 divisors (see below), whose sum is σ = 131072256. Its totient is φ = 22609920.

The previous prime is 64381069. The next prime is 64381127. The reversal of 64381070 is 7018346.

64381070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 250382 + ... + 250638.

It is an arithmetic number, because the mean of its divisors is an integer number (2048004).

Almost surely, 2^64381070 is an apocalyptic number.

64381070 is an abundant number, since it is smaller than the sum of its proper divisors (66691186).

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

64381070 is a wasteful number, since it uses less digits than its factorization.

64381070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 64381070 is about 8023.7815274346. The cubic root of 64381070 is about 400.7923253484.

The spelling of 64381070 in words is "sixty-four million, three hundred eighty-one thousand, seventy".