726742026 has 12 divisors (see below), whose sum is σ = 1574607762. Its totient is φ = 242247336.

The previous prime is 726741997. The next prime is 726742031. The reversal of 726742026 is 620247627.

It can be written as a sum of positive squares in only one way, i.e., 718186401 + 8555625 = 26799^2 + 2925^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20187261 + ... + 20187296.

Almost surely, 2^726742026 is an apocalyptic number.

726742026 is an abundant number, since it is smaller than the sum of its proper divisors (847865736).

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

726742026 is a wasteful number, since it uses less digits than its factorization.

726742026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40374565 (or 40374562 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 726742026 is about 26958.1532379353. The cubic root of 726742026 is about 899.0698315757.

The spelling of 726742026 in words is "seven hundred twenty-six million, seven hundred forty-two thousand, twenty-six".