14640784 has 10 divisors (see below), whose sum is σ = 28366550. Its totient is φ = 7320384.

The previous prime is 14640781. The next prime is 14640797. The reversal of 14640784 is 48704641.

It can be written as a sum of positive squares in only one way, i.e., 10112400 + 4528384 = 3180^2 + 2128^2 .

It is a super-2 number, since 2×14640784² = 428705112269312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14640781) 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, 457509 + ... + 457540.

It is an arithmetic number, because the mean of its divisors is an integer number (2836655).

Almost surely, 2^14640784 is an apocalyptic number.

It is an amenable number.

14640784 is a deficient number, since it is larger than the sum of its proper divisors (13725766).

14640784 is an equidigital number, since it uses as much as digits as its factorization.

14640784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915057 (or 915051 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 14640784 is about 3826.3277434114. The cubic root of 14640784 is about 244.6366069021.

The spelling of 14640784 in words is "fourteen million, six hundred forty thousand, seven hundred eighty-four".