64000388 has 6 divisors (see below), whose sum is σ = 112000686. Its totient is φ = 32000192.

The previous prime is 64000381. The next prime is 64000411. The reversal of 64000388 is 88300046.

It can be written as a sum of positive squares in only one way, i.e., 39715204 + 24285184 = 6302^2 + 4928^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64000388.

It is not an unprimeable number, because it can be changed into a prime (64000381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000045 + ... + 8000052.

It is an arithmetic number, because the mean of its divisors is an integer number (18666781).

Almost surely, 2^64000388 is an apocalyptic number.

It is an amenable number.

64000388 is a deficient number, since it is larger than the sum of its proper divisors (48000298).

64000388 is a wasteful number, since it uses less digits than its factorization.

64000388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16000101 (or 16000099 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 64000388 is about 8000.0242499632. The cubic root of 64000388 is about 400.0008083317. Note that the first 3 decimals are identical.

It can be divided in two parts, 6400038 and 8, that added together give a palindrome (6400046).

The spelling of 64000388 in words is "sixty-four million, three hundred eighty-eight", and thus it is an aban number.