726543650 has 24 divisors (see below), whose sum is σ = 1544424960. Its totient is φ = 249100560.

The previous prime is 726543647. The next prime is 726543659. The reversal of 726543650 is 56345627.

It is not an unprimeable number, because it can be changed into a prime (726543659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1037570 + ... + 1038269.

It is an arithmetic number, because the mean of its divisors is an integer number (64351040).

Almost surely, 2^726543650 is an apocalyptic number.

726543650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

726543650 is an abundant number, since it is smaller than the sum of its proper divisors (817881310).

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

726543650 is a wasteful number, since it uses less digits than its factorization.

726543650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075858 (or 2075853 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 726543650 is about 26954.4736546645. The cubic root of 726543650 is about 898.9880189098.

The spelling of 726543650 in words is "seven hundred twenty-six million, five hundred forty-three thousand, six hundred fifty".