246640022 has 8 divisors (see below), whose sum is σ = 370688400. Its totient is φ = 123077224.

The previous prime is 246639997. The next prime is 246640033. The reversal of 246640022 is 220046642.

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

It is a junction number, because it is equal to n+sod(n) for n = 246639973 and 246640000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120122 + ... + 122157.

It is an arithmetic number, because the mean of its divisors is an integer number (46336050).

Almost surely, 2^246640022 is an apocalyptic number.

246640022 is a deficient number, since it is larger than the sum of its proper divisors (124048378).

246640022 is a wasteful number, since it uses less digits than its factorization.

246640022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242790.

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

The square root of 246640022 is about 15704.7770439443. Note that the first 3 decimals coincide. The cubic root of 246640022 is about 627.1255816227.

Adding to 246640022 its reverse (220046642), we get a palindrome (466686664).

The spelling of 246640022 in words is "two hundred forty-six million, six hundred forty thousand, twenty-two".