4643642 has 4 divisors (see below), whose sum is σ = 6965466. Its totient is φ = 2321820.

The previous prime is 4643641. The next prime is 4643659. The reversal of 4643642 is 2463464.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4414201 + 229441 = 2101^2 + 479^2 .

It is a super-2 number, since 2×4643642² = 43126822048328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4643641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160909 + ... + 1160912.

Almost surely, 2^4643642 is an apocalyptic number.

4643642 is a deficient number, since it is larger than the sum of its proper divisors (2321824).

4643642 is a wasteful number, since it uses less digits than its factorization.

4643642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321823.

The product of its digits is 13824, while the sum is 29.

The square root of 4643642 is about 2154.9111350587. The cubic root of 4643642 is about 166.8346457524.

The spelling of 4643642 in words is "four million, six hundred forty-three thousand, six hundred forty-two".