833342640 has 80 divisors (see below), whose sum is σ = 2782092768. Its totient is φ = 205129728.

The previous prime is 833342633. The next prime is 833342677. The reversal of 833342640 is 46243338.

833342640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130429 + ... + 136668.

Almost surely, 2^833342640 is an apocalyptic number.

833342640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

833342640 is an abundant number, since it is smaller than the sum of its proper divisors (1948750128).

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

833342640 is a wasteful number, since it uses less digits than its factorization.

833342640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267126 (or 267120 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 833342640 is about 28867.6746552264. The cubic root of 833342640 is about 941.0395320314.

Adding to 833342640 its reverse (46243338), we get a palindrome (879585978).

The spelling of 833342640 in words is "eight hundred thirty-three million, three hundred forty-two thousand, six hundred forty".