4640626 has 16 divisors (see below), whose sum is σ = 7552440. Its totient is φ = 2129920.

The previous prime is 4640599. The next prime is 4640717. The reversal of 4640626 is 6260464.

It can be written as a sum of positive squares in 4 ways, for example, as 3236401 + 1404225 = 1799^2 + 1185^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4640594 and 4640603.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 271 + ... + 3058.

Almost surely, 2^4640626 is an apocalyptic number.

4640626 is a deficient number, since it is larger than the sum of its proper divisors (2911814).

4640626 is a wasteful number, since it uses less digits than its factorization.

4640626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4640626 is about 2154.2112245553. The cubic root of 4640626 is about 166.7985187737.

The spelling of 4640626 in words is "four million, six hundred forty thousand, six hundred twenty-six".