402006626 has 32 divisors (see below), whose sum is σ = 697307520. Its totient is φ = 170263296.

The previous prime is 402006593. The next prime is 402006629. The reversal of 402006626 is 626600204.

It is a junction number, because it is equal to n+sod(n) for n = 402006595 and 402006604.

It is not an unprimeable number, because it can be changed into a prime (402006629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655496 + ... + 656108.

It is an arithmetic number, because the mean of its divisors is an integer number (21790860).

Almost surely, 2^402006626 is an apocalyptic number.

402006626 is a deficient number, since it is larger than the sum of its proper divisors (295300894).

402006626 is a wasteful number, since it uses less digits than its factorization.

402006626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 402006626 is about 20050.1028925041. The cubic root of 402006626 is about 738.0363240812.

The spelling of 402006626 in words is "four hundred two million, six thousand, six hundred twenty-six".