64462266 has 72 divisors (see below), whose sum is σ = 162643572. Its totient is φ = 18374400.

The previous prime is 64462253. The next prime is 64462297. The reversal of 64462266 is 66226446.

64462266 is a `hidden beast` number, since 644 + 6 + 2 + 2 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61168041 + 3294225 = 7821^2 + 1815^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64462266.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36156 + ... + 37896.

Almost surely, 2^64462266 is an apocalyptic number.

64462266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64462266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81321786).

64462266 is an abundant number, since it is smaller than the sum of its proper divisors (98181306).

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

64462266 is a wasteful number, since it uses less digits than its factorization.

64462266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788 (or 1774 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 64462266 is about 8028.8396421899. The cubic root of 64462266 is about 400.9607447430.

The spelling of 64462266 in words is "sixty-four million, four hundred sixty-two thousand, two hundred sixty-six".