64344270 has 32 divisors (see below), whose sum is σ = 155240352. Its totient is φ = 17068032.

The previous prime is 64344151. The next prime is 64344307. The reversal of 64344270 is 7244346.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 11346.

It is an arithmetic number, because the mean of its divisors is an integer number (4851261).

Almost surely, 2^64344270 is an apocalyptic number.

64344270 is an abundant number, since it is smaller than the sum of its proper divisors (90896082).

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

64344270 is a wasteful number, since it uses less digits than its factorization.

64344270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11316.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 64344270 is about 8021.4880165715. The cubic root of 64344270 is about 400.7159469520.

The spelling of 64344270 in words is "sixty-four million, three hundred forty-four thousand, two hundred seventy".