726694254 has 240 divisors, whose sum is σ = 2040698880. Its totient is φ = 191056320.

The previous prime is 726694249. The next prime is 726694279. The reversal of 726694254 is 452496627.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 5721939 + ... + 5722065.

It is an arithmetic number, because the mean of its divisors is an integer number (8502912).

Almost surely, 2^726694254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726694254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020349440).

726694254 is an abundant number, since it is smaller than the sum of its proper divisors (1314004626).

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

726694254 is a wasteful number, since it uses less digits than its factorization.

726694254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 175 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 726694254 is about 26957.2671834517. The cubic root of 726694254 is about 899.0501311852.

The spelling of 726694254 in words is "seven hundred twenty-six million, six hundred ninety-four thousand, two hundred fifty-four".