5729142720 has 448 divisors, whose sum is σ = 21535948800. Its totient is φ = 1289723904.

The previous prime is 5729142709. The next prime is 5729142737. The reversal of 5729142720 is 272419275.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×5729142720² = 65646152612257996800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41818492 + ... + 41818628.

Almost surely, 2^5729142720 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 5729142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10767974400).

5729142720 is an abundant number, since it is smaller than the sum of its proper divisors (15806806080).

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

5729142720 is a wasteful number, since it uses less digits than its factorization.

5729142720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 5729142720 is about 75691.1006657982. The cubic root of 5729142720 is about 1789.3551478041.

The spelling of 5729142720 in words is "five billion, seven hundred twenty-nine million, one hundred forty-two thousand, seven hundred twenty".