4640426 has 16 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 1981680.

The previous prime is 4640423. The next prime is 4640437. The reversal of 4640426 is 6240464.

It is a super-2 number, since 2×4640426² = 43067106922952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4640395 and 4640404.

It is not an unprimeable number, because it can be changed into a prime (4640423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6095 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^4640426 is an apocalyptic number.

4640426 is a deficient number, since it is larger than the sum of its proper divisors (3342934).

4640426 is a wasteful number, since it uses less digits than its factorization.

4640426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4640426 is about 2154.1648033519. The cubic root of 4640426 is about 166.7961225322.

The spelling of 4640426 in words is "four million, six hundred forty thousand, four hundred twenty-six".