858272604 has 96 divisors (see below), whose sum is σ = 2361655296. Its totient is φ = 237504960.

The previous prime is 858272581. The next prime is 858272621. The reversal of 858272604 is 406272858.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457789 + ... + 459659.

It is an arithmetic number, because the mean of its divisors is an integer number (24600576).

Almost surely, 2^858272604 is an apocalyptic number.

858272604 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 858272604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180827648).

858272604 is an abundant number, since it is smaller than the sum of its proper divisors (1503382692).

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

858272604 is a wasteful number, since it uses less digits than its factorization.

858272604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 858272604 is about 29296.2899357581. The cubic root of 858272604 is about 950.3314093968.

The spelling of 858272604 in words is "eight hundred fifty-eight million, two hundred seventy-two thousand, six hundred four".