6434299840 has 112 divisors (see below), whose sum is σ = 16503822720. Its totient is φ = 2381460480.

The previous prime is 6434299831. The next prime is 6434299843. The reversal of 6434299840 is 489924346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434299843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249135 + ... + 273745.

It is an arithmetic number, because the mean of its divisors is an integer number (147355560).

Almost surely, 2^6434299840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6434299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8251911360).

6434299840 is an abundant number, since it is smaller than the sum of its proper divisors (10069522880).

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

6434299840 is a wasteful number, since it uses less digits than its factorization.

6434299840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24690 (or 24680 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The square root of 6434299840 is about 80214.0875407805. The cubic root of 6434299840 is about 1859.9464122997.

The spelling of 6434299840 in words is "six billion, four hundred thirty-four million, two hundred ninety-nine thousand, eight hundred forty".