642682092 has 48 divisors (see below), whose sum is σ = 1641443552. Its totient is φ = 194503680.

The previous prime is 642682091. The next prime is 642682097. The reversal of 642682092 is 290286246.

642682092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 642682092.

It is not an unprimeable number, because it can be changed into a prime (642682091) 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, 24253 + ... + 43284.

Almost surely, 2^642682092 is an apocalyptic number.

It is an amenable number.

642682092 is an abundant number, since it is smaller than the sum of its proper divisors (998761460).

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

642682092 is a wasteful number, since it uses less digits than its factorization.

642682092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67618 (or 67616 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 642682092 is about 25351.1753573676. The cubic root of 642682092 is about 862.9760299334.

The spelling of 642682092 in words is "six hundred forty-two million, six hundred eighty-two thousand, ninety-two".