868453020 has 36 divisors (see below), whose sum is σ = 2634308040. Its totient is φ = 231587424.

The previous prime is 868452989. The next prime is 868453039. The reversal of 868453020 is 20354868.

868453020 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2412190 + ... + 2412549.

Almost surely, 2^868453020 is an apocalyptic number.

It is an amenable number.

868453020 is an abundant number, since it is smaller than the sum of its proper divisors (1765855020).

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

868453020 is a wasteful number, since it uses less digits than its factorization.

868453020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824754 (or 4824749 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 868453020 is about 29469.5269727900. The cubic root of 868453020 is about 954.0741078725.

The spelling of 868453020 in words is "eight hundred sixty-eight million, four hundred fifty-three thousand, twenty".