64263270 has 64 divisors (see below), whose sum is σ = 157925376. Its totient is φ = 16732800.

The previous prime is 64263259. The next prime is 64263271. The reversal of 64263270 is 7236246.

64263270 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 (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64263271) 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 31 ways as a sum of consecutive naturals, for example, 384727 + ... + 384893.

It is an arithmetic number, because the mean of its divisors is an integer number (2467584).

Almost surely, 2^64263270 is an apocalyptic number.

64263270 is an abundant number, since it is smaller than the sum of its proper divisors (93662106).

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

64263270 is a wasteful number, since it uses less digits than its factorization.

64263270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 64263270 is about 8016.4374880616. The cubic root of 64263270 is about 400.5477288072.

The spelling of 64263270 in words is "sixty-four million, two hundred sixty-three thousand, two hundred seventy".