726142766 has 8 divisors (see below), whose sum is σ = 1091742624. Its totient is φ = 362228560.

The previous prime is 726142757. The next prime is 726142783. The reversal of 726142766 is 667241627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×726142766² = 1054566633228261512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420335 + ... + 422058.

It is an arithmetic number, because the mean of its divisors is an integer number (136467828).

Almost surely, 2^726142766 is an apocalyptic number.

726142766 is a deficient number, since it is larger than the sum of its proper divisors (365599858).

726142766 is a wasteful number, since it uses less digits than its factorization.

726142766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842826.

The product of its digits is 169344, while the sum is 41.

The square root of 726142766 is about 26947.0363119954. The cubic root of 726142766 is about 898.8226440250.

The spelling of 726142766 in words is "seven hundred twenty-six million, one hundred forty-two thousand, seven hundred sixty-six".