6404138224 has 40 divisors (see below), whose sum is σ = 13972677120. Its totient is φ = 2817067200.

The previous prime is 6404138219. The next prime is 6404138287. The reversal of 6404138224 is 4228314046.

It is a self number, because there is not a number n which added to its sum of digits gives 6404138224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581434 + ... + 592345.

It is an arithmetic number, because the mean of its divisors is an integer number (349316928).

Almost surely, 2^6404138224 is an apocalyptic number.

It is an amenable number.

6404138224 is an abundant number, since it is smaller than the sum of its proper divisors (7568538896).

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

6404138224 is a wasteful number, since it uses less digits than its factorization.

6404138224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173829 (or 1173823 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 6404138224 is about 80025.8597204679. The cubic root of 6404138224 is about 1857.0356125256.

The spelling of 6404138224 in words is "six billion, four hundred four million, one hundred thirty-eight thousand, two hundred twenty-four".