726061720 has 32 divisors (see below), whose sum is σ = 1636359120. Its totient is φ = 289941120.

The previous prime is 726061717. The next prime is 726061727. The reversal of 726061720 is 27160627.

It is a super-3 number, since 3×726061720³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726061727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9715 + ... + 39325.

Almost surely, 2^726061720 is an apocalyptic number.

It is an amenable number.

726061720 is an abundant number, since it is smaller than the sum of its proper divisors (910297400).

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

726061720 is a wasteful number, since it uses less digits than its factorization.

726061720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30235 (or 30231 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 726061720 is about 26945.5324682961. The cubic root of 726061720 is about 898.7892030849.

The spelling of 726061720 in words is "seven hundred twenty-six million, sixty-one thousand, seven hundred twenty".