858872740 has 48 divisors (see below), whose sum is σ = 1994590080. Its totient is φ = 308033280.

The previous prime is 858872719. The next prime is 858872743. The reversal of 858872740 is 47278858.

858872740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (858872743) 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, 10680 + ... + 42799.

It is an arithmetic number, because the mean of its divisors is an integer number (41553960).

Almost surely, 2^858872740 is an apocalyptic number.

It is an amenable number.

858872740 is an abundant number, since it is smaller than the sum of its proper divisors (1135717340).

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

858872740 is a wasteful number, since it uses less digits than its factorization.

858872740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53572 (or 53570 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 49.

The square root of 858872740 is about 29306.5306715073. The cubic root of 858872740 is about 950.5528600984.

The spelling of 858872740 in words is "eight hundred fifty-eight million, eight hundred seventy-two thousand, seven hundred forty".