729769238 has 16 divisors (see below), whose sum is σ = 1205994960. Its totient is φ = 328428000.

The previous prime is 729769237. The next prime is 729769267. The reversal of 729769238 is 832967927.

It is a super-2 number, since 2×729769238² = 1065126281462201288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 729769238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729769237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161993 + ... + 166436.

It is an arithmetic number, because the mean of its divisors is an integer number (75374685).

Almost surely, 2^729769238 is an apocalyptic number.

729769238 is a deficient number, since it is larger than the sum of its proper divisors (476225722).

729769238 is a wasteful number, since it uses less digits than its factorization.

729769238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328543.

The product of its digits is 2286144, while the sum is 53.

The square root of 729769238 is about 27014.2413922731. The cubic root of 729769238 is about 900.3164475691.

It can be divided in two parts, 729 and 769238, that added together give a palindrome (769967).

The spelling of 729769238 in words is "seven hundred twenty-nine million, seven hundred sixty-nine thousand, two hundred thirty-eight".