64402466 has 4 divisors (see below), whose sum is σ = 96603702. Its totient is φ = 32201232.

The previous prime is 64402463. The next prime is 64402483. The reversal of 64402466 is 66420446.

64402466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 20511841 = 6625^2 + 4529^2 .

It is not an unprimeable number, because it can be changed into a prime (64402463) 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 as a sum of consecutive naturals, namely, 16100615 + ... + 16100618.

Almost surely, 2^64402466 is an apocalyptic number.

64402466 is a deficient number, since it is larger than the sum of its proper divisors (32201236).

64402466 is a wasteful number, since it uses less digits than its factorization.

64402466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32201235.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 64402466 is about 8025.1147032301. The cubic root of 64402466 is about 400.8367193647.

The spelling of 64402466 in words is "sixty-four million, four hundred two thousand, four hundred sixty-six".