729100042 has 16 divisors (see below), whose sum is σ = 1193976000. Its totient is φ = 331158240.

The previous prime is 729099953. The next prime is 729100051. The reversal of 729100042 is 240001927.

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, 18934 + ... + 42622.

It is an arithmetic number, because the mean of its divisors is an integer number (74623500).

Almost surely, 2^729100042 is an apocalyptic number.

729100042 is a deficient number, since it is larger than the sum of its proper divisors (464875958).

729100042 is a wasteful number, since it uses less digits than its factorization.

729100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25101.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 729100042 is about 27001.8525660741. The cubic root of 729100042 is about 900.0411676642.

Adding to 729100042 its reverse (240001927), we get a palindrome (969101969).

The spelling of 729100042 in words is "seven hundred twenty-nine million, one hundred thousand, forty-two".