64040234 has 16 divisors (see below), whose sum is σ = 103472640. Its totient is φ = 29639280.

The previous prime is 64040233. The next prime is 64040261. The reversal of 64040234 is 43204046.

It is a happy number.

64040234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (64040231) 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, 21029 + ... + 23880.

It is an arithmetic number, because the mean of its divisors is an integer number (6467040).

Almost surely, 2^64040234 is an apocalyptic number.

64040234 is a deficient number, since it is larger than the sum of its proper divisors (39432406).

64040234 is a wasteful number, since it uses less digits than its factorization.

64040234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44965.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 64040234 is about 8002.5142299155. The cubic root of 64040234 is about 400.0838032746.

The spelling of 64040234 in words is "sixty-four million, forty thousand, two hundred thirty-four".