4718640 has 40 divisors (see below), whose sum is σ = 14628528. Its totient is φ = 1258240.

The previous prime is 4718627. The next prime is 4718653. The reversal of 4718640 is 468174.

It is an interprime number because it is at equal distance from previous prime (4718627) and next prime (4718653).

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4718598 and 4718607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9591 + ... + 10070.

Almost surely, 2^4718640 is an apocalyptic number.

4718640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4718640 is an abundant number, since it is smaller than the sum of its proper divisors (9909888).

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

4718640 is a wasteful number, since it uses less digits than its factorization.

4718640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19677 (or 19671 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 4718640 is about 2172.2430803204. The cubic root of 4718640 is about 167.7280179647.

The spelling of 4718640 in words is "four million, seven hundred eighteen thousand, six hundred forty".