6400224894 has 32 divisors (see below), whose sum is σ = 14631724800. Its totient is φ = 1828305792.

The previous prime is 6400224893. The next prime is 6400224899. The reversal of 6400224894 is 4984220046.

It is a super-2 number, since 2×6400224894² = 81925757387554622472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400224893) 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, 313462 + ... + 333254.

It is an arithmetic number, because the mean of its divisors is an integer number (457241400).

Almost surely, 2^6400224894 is an apocalyptic number.

6400224894 is an abundant number, since it is smaller than the sum of its proper divisors (8231499906).

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

6400224894 is a wasteful number, since it uses less digits than its factorization.

6400224894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27504.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 6400224894 is about 80001.4055751522. The cubic root of 6400224894 is about 1856.6572803879.

The spelling of 6400224894 in words is "six billion, four hundred million, two hundred twenty-four thousand, eight hundred ninety-four".