729743248 has 20 divisors (see below), whose sum is σ = 1522637788. Its totient is φ = 336804480.

The previous prime is 729743243. The next prime is 729743251. The reversal of 729743248 is 842347927.

It can be written as a sum of positive squares in 2 ways, for example, as 57274624 + 672468624 = 7568^2 + 25932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 729743198 and 729743207.

It is not an unprimeable number, because it can be changed into a prime (729743243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753983 + ... + 1754398.

Almost surely, 2^729743248 is an apocalyptic number.

It is an amenable number.

729743248 is an abundant number, since it is smaller than the sum of its proper divisors (792894540).

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

729743248 is a wasteful number, since it uses less digits than its factorization.

729743248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508402 (or 3508396 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 729743248 is about 27013.7603454240. The cubic root of 729743248 is about 900.3057594862.

The spelling of 729743248 in words is "seven hundred twenty-nine million, seven hundred forty-three thousand, two hundred forty-eight".