64270436 has 6 divisors (see below), whose sum is σ = 112473270. Its totient is φ = 32135216.

The previous prime is 64270379. The next prime is 64270439. The reversal of 64270436 is 63407246.

It can be written as a sum of positive squares in only one way, i.e., 63840100 + 430336 = 7990^2 + 656^2 .

It is not an unprimeable number, because it can be changed into a prime (64270439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8033801 + ... + 8033808.

It is an arithmetic number, because the mean of its divisors is an integer number (18745545).

Almost surely, 2^64270436 is an apocalyptic number.

It is an amenable number.

64270436 is a deficient number, since it is larger than the sum of its proper divisors (48202834).

64270436 is a wasteful number, since it uses less digits than its factorization.

64270436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16067613 (or 16067611 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64270436 is about 8016.8844322467. The cubic root of 64270436 is about 400.5626166187.

The spelling of 64270436 in words is "sixty-four million, two hundred seventy thousand, four hundred thirty-six".