6404266400 has 72 divisors (see below), whose sum is σ = 17867918880. Its totient is φ = 2195746560.

The previous prime is 6404266387. The next prime is 6404266423. The reversal of 6404266400 is 46624046.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 566210 + ... + 577409.

It is an arithmetic number, because the mean of its divisors is an integer number (248165540).

Almost surely, 2^6404266400 is an apocalyptic number.

It is an amenable number.

6404266400 is an abundant number, since it is smaller than the sum of its proper divisors (11463652480).

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

6404266400 is a wasteful number, since it uses less digits than its factorization.

6404266400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143646 (or 1143633 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 6404266400 is about 80026.6605575917. The cubic root of 6404266400 is about 1857.0480016923.

The spelling of 6404266400 in words is "six billion, four hundred four million, two hundred sixty-six thousand, four hundred".