216413726 has 8 divisors (see below), whose sum is σ = 329942424. Its totient is φ = 106432920.

The previous prime is 216413719. The next prime is 216413741. The reversal of 216413726 is 627314612.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 216413692 and 216413701.

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, 886820 + ... + 887063.

It is an arithmetic number, because the mean of its divisors is an integer number (41242803).

Almost surely, 2^216413726 is an apocalyptic number.

216413726 is a deficient number, since it is larger than the sum of its proper divisors (113528698).

216413726 is a wasteful number, since it uses less digits than its factorization.

216413726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773946.

The product of its digits is 12096, while the sum is 32.

The square root of 216413726 is about 14711.0069675736. The cubic root of 216413726 is about 600.3828353062.

The spelling of 216413726 in words is "two hundred sixteen million, four hundred thirteen thousand, seven hundred twenty-six".