4052640 has 48 divisors (see below), whose sum is σ = 12767328. Its totient is φ = 1080576.

The previous prime is 4052627. The next prime is 4052683. The reversal of 4052640 is 462504.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 3742 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (265986).

Almost surely, 2^4052640 is an apocalyptic number.

4052640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4052640 is an abundant number, since it is smaller than the sum of its proper divisors (8714688).

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

4052640 is a wasteful number, since it uses less digits than its factorization.

4052640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8453 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4052640 is about 2013.1169861685. The cubic root of 4052640 is about 159.4334126523.

The spelling of 4052640 in words is "four million, fifty-two thousand, six hundred forty".