4549640 has 32 divisors (see below), whose sum is σ = 10342080. Its totient is φ = 1801152.

The previous prime is 4549639. The next prime is 4549651. The reversal of 4549640 is 469454.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4549597 and 4549606.

It is a congruent number.

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, 3749 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (323190).

Almost surely, 2^4549640 is an apocalyptic number.

4549640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4549640 is an abundant number, since it is smaller than the sum of its proper divisors (5792440).

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

4549640 is a wasteful number, since it uses less digits than its factorization.

4549640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 4549640 is about 2132.9885137994. The cubic root of 4549640 is about 165.7012092620.

The spelling of 4549640 in words is "four million, five hundred forty-nine thousand, six hundred forty".