858478460 has 24 divisors (see below), whose sum is σ = 2060348640. Its totient is φ = 294335424.

The previous prime is 858478399. The next prime is 858478469. The reversal of 858478460 is 64874858.

It is a junction number, because it is equal to n+sod(n) for n = 858478399 and 858478408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858478469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065855 + ... + 3066134.

It is an arithmetic number, because the mean of its divisors is an integer number (85847860).

Almost surely, 2^858478460 is an apocalyptic number.

It is an amenable number.

858478460 is an abundant number, since it is smaller than the sum of its proper divisors (1201870180).

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

858478460 is a wasteful number, since it uses less digits than its factorization.

858478460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132005 (or 6132003 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The square root of 858478460 is about 29299.8030710106. The cubic root of 858478460 is about 950.4073820668.

The spelling of 858478460 in words is "eight hundred fifty-eight million, four hundred seventy-eight thousand, four hundred sixty".