726023816 has 64 divisors (see below), whose sum is σ = 1619654400. Its totient is φ = 298513152.

The previous prime is 726023797. The next prime is 726023843. The reversal of 726023816 is 618320627.

It is a happy number.

It is a super-2 number, since 2×726023816² = 1054221162798403712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269870 + ... + 272546.

It is an arithmetic number, because the mean of its divisors is an integer number (25307100).

Almost surely, 2^726023816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726023816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809827200).

726023816 is an abundant number, since it is smaller than the sum of its proper divisors (893630584).

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

726023816 is a wasteful number, since it uses less digits than its factorization.

726023816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 726023816 is about 26944.8291143217. The cubic root of 726023816 is about 898.7735624041.

The spelling of 726023816 in words is "seven hundred twenty-six million, twenty-three thousand, eight hundred sixteen".