646424262 has 48 divisors (see below), whose sum is σ = 1569224592. Its totient is φ = 190589760.

The previous prime is 646424243. The next prime is 646424279. The reversal of 646424262 is 262424646.

646424262 is a `hidden beast` number, since 6 + 4 + 642 + 4 + 2 + 6 + 2 = 666.

646424262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36793 + ... + 51444.

It is an arithmetic number, because the mean of its divisors is an integer number (32692179).

Almost surely, 2^646424262 is an apocalyptic number.

646424262 is an abundant number, since it is smaller than the sum of its proper divisors (922800330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646424262 is a wasteful number, since it uses less digits than its factorization.

646424262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88293 (or 88290 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 646424262 is about 25424.8748669487. The cubic root of 646424262 is about 864.6477508136.

The spelling of 646424262 in words is "six hundred forty-six million, four hundred twenty-four thousand, two hundred sixty-two".