729432544 has 12 divisors (see below), whose sum is σ = 1436070384. Its totient is φ = 364716256.

The previous prime is 729432479. The next prime is 729432547. The reversal of 729432544 is 445234927.

It is a junction number, because it is equal to n+sod(n) for n = 729432497 and 729432506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729432547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11397352 + ... + 11397415.

It is an arithmetic number, because the mean of its divisors is an integer number (119672532).

Almost surely, 2^729432544 is an apocalyptic number.

It is an amenable number.

729432544 is a deficient number, since it is larger than the sum of its proper divisors (706637840).

729432544 is a wasteful number, since it uses less digits than its factorization.

729432544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22794777 (or 22794769 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 729432544 is about 27008.0088862545. The cubic root of 729432544 is about 900.1779664526.

The spelling of 729432544 in words is "seven hundred twenty-nine million, four hundred thirty-two thousand, five hundred forty-four".