842700720 has 80 divisors (see below), whose sum is σ = 2615412960. Its totient is φ = 224458752.

The previous prime is 842700707. The next prime is 842700751. The reversal of 842700720 is 27007248.

842700720 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 a Harshad number since it is a multiple of its sum of digits (30).

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, 293532 + ... + 296388.

It is an arithmetic number, because the mean of its divisors is an integer number (32692662).

Almost surely, 2^842700720 is an apocalyptic number.

842700720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842700720 is an abundant number, since it is smaller than the sum of its proper divisors (1772712240).

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

842700720 is a wasteful number, since it uses less digits than its factorization.

842700720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 842700720 is about 29029.3079490366. The cubic root of 842700720 is about 944.5489182800.

Adding to 842700720 its reverse (27007248), we get a palindrome (869707968).

The spelling of 842700720 in words is "eight hundred forty-two million, seven hundred thousand, seven hundred twenty".