64042230 has 64 divisors (see below), whose sum is σ = 186001920. Its totient is φ = 13776384.

The previous prime is 64042229. The next prime is 64042241. The reversal of 64042230 is 3224046.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64042197 and 64042206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5400 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (2906280).

Almost surely, 2^64042230 is an apocalyptic number.

64042230 is an abundant number, since it is smaller than the sum of its proper divisors (121959690).

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

64042230 is a wasteful number, since it uses less digits than its factorization.

64042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17973.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 64042230 is about 8002.6389397498. The cubic root of 64042230 is about 400.0879598229.

Adding to 64042230 its reverse (3224046), we get a palindrome (67266276).

The spelling of 64042230 in words is "sixty-four million, forty-two thousand, two hundred thirty".