729690542 has 16 divisors (see below), whose sum is σ = 1284707040. Its totient is φ = 304272288.

The previous prime is 729690523. The next prime is 729690589. The reversal of 729690542 is 245096927.

It is a junction number, because it is equal to n+sod(n) for n = 729690493 and 729690502.

It is a congruent number.

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, 703817 + ... + 704852.

It is an arithmetic number, because the mean of its divisors is an integer number (80294190).

Almost surely, 2^729690542 is an apocalyptic number.

729690542 is a deficient number, since it is larger than the sum of its proper divisors (555016498).

729690542 is a wasteful number, since it uses less digits than its factorization.

729690542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408715.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 729690542 is about 27012.7847879481. The cubic root of 729690542 is about 900.2840839823.

The spelling of 729690542 in words is "seven hundred twenty-nine million, six hundred ninety thousand, five hundred forty-two".