6400572 has 24 divisors (see below), whose sum is σ = 15085392. Its totient is φ = 2112000.

The previous prime is 6400543. The next prime is 6400591. The reversal of 6400572 is 2750046.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 3852.

It is an arithmetic number, because the mean of its divisors is an integer number (628558).

Almost surely, 2^6400572 is an apocalyptic number.

It is an amenable number.

6400572 is an abundant number, since it is smaller than the sum of its proper divisors (8684820).

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

6400572 is a wasteful number, since it uses less digits than its factorization.

6400572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389 (or 5387 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 6400572 is about 2529.9351770352. The cubic root of 6400572 is about 185.6690844064.

The spelling of 6400572 in words is "six million, four hundred thousand, five hundred seventy-two".