6406324372 has 24 divisors (see below), whose sum is σ = 12937049216. Its totient is φ = 2718910368.

The previous prime is 6406324369. The next prime is 6406324381. The reversal of 6406324372 is 2734236046.

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, 1107783 + ... + 1113550.

Almost surely, 2^6406324372 is an apocalyptic number.

It is an amenable number.

6406324372 is an abundant number, since it is smaller than the sum of its proper divisors (6530724844).

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

6406324372 is a wasteful number, since it uses less digits than its factorization.

6406324372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221447 (or 2221445 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 37.

The square root of 6406324372 is about 80039.5175647630. The cubic root of 6406324372 is about 1857.2468974106.

The spelling of 6406324372 in words is "six billion, four hundred six million, three hundred twenty-four thousand, three hundred seventy-two".