4566440 has 16 divisors (see below), whose sum is σ = 10274580. Its totient is φ = 1826560.

The previous prime is 4566433. The next prime is 4566451. The reversal of 4566440 is 446654.

It can be written as a sum of positive squares in 2 ways, for example, as 4401604 + 164836 = 2098^2 + 406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57041 + ... + 57120.

Almost surely, 2^4566440 is an apocalyptic number.

4566440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4566440 is an abundant number, since it is smaller than the sum of its proper divisors (5708140).

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

4566440 is a wasteful number, since it uses less digits than its factorization.

4566440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114172 (or 114168 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4566440 is about 2136.9230215429. The cubic root of 4566440 is about 165.9049148201.

The spelling of 4566440 in words is "four million, five hundred sixty-six thousand, four hundred forty".