4640446 has 8 divisors (see below), whose sum is σ = 7327080. Its totient is φ = 2198088.

The previous prime is 4640443. The next prime is 4640477. The reversal of 4640446 is 6440464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61021 + ... + 61096.

It is an arithmetic number, because the mean of its divisors is an integer number (915885).

Almost surely, 2^4640446 is an apocalyptic number.

4640446 is a deficient number, since it is larger than the sum of its proper divisors (2686634).

4640446 is a wasteful number, since it uses less digits than its factorization.

4640446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122138.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4640446 is about 2154.1694455172. The cubic root of 4640446 is about 166.7963621594.

The spelling of 4640446 in words is "four million, six hundred forty thousand, four hundred forty-six".