862112020 has 48 divisors (see below), whose sum is σ = 2257170048. Its totient is φ = 268709760.

The previous prime is 862112011. The next prime is 862112021. The reversal of 862112020 is 20211268.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 862111982 and 862112000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278367 + ... + 281446.

It is an arithmetic number, because the mean of its divisors is an integer number (47024376).

Almost surely, 2^862112020 is an apocalyptic number.

It is an amenable number.

862112020 is an abundant number, since it is smaller than the sum of its proper divisors (1395058028).

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

862112020 is a wasteful number, since it uses less digits than its factorization.

862112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559840 (or 559838 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 862112020 is about 29361.7441580026. The cubic root of 862112020 is about 951.7463795477.

Adding to 862112020 its reverse (20211268), we get a palindrome (882323288).

The spelling of 862112020 in words is "eight hundred sixty-two million, one hundred twelve thousand, twenty".