4665840 has 40 divisors (see below), whose sum is σ = 14464848. Its totient is φ = 1244160.

The previous prime is 4665833. The next prime is 4665847. The reversal of 4665840 is 485664.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4665833) and next prime (4665847).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4665847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9481 + ... + 9960.

Almost surely, 2^4665840 is an apocalyptic number.

4665840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4665840 is an abundant number, since it is smaller than the sum of its proper divisors (9799008).

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

4665840 is a wasteful number, since it uses less digits than its factorization.

4665840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19457 (or 19451 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 4665840 is about 2160.0555548411. The cubic root of 4665840 is about 167.1000631392.

It can be divided in two parts, 4665 and 840, that multiplied together give a triangular number (3918600 = T₂₇₉₉).

The spelling of 4665840 in words is "four million, six hundred sixty-five thousand, eight hundred forty".