181968696 has 96 divisors (see below), whose sum is σ = 606584160. Its totient is φ = 47990016.

The previous prime is 181968691. The next prime is 181968713. The reversal of 181968696 is 696869181.

It is a super-2 number, since 2×181968696² = 66225212647880832, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181968691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7335 + ... + 20438.

It is an arithmetic number, because the mean of its divisors is an integer number (6318585).

Almost surely, 2^181968696 is an apocalyptic number.

It is an amenable number.

181968696 is an abundant number, since it is smaller than the sum of its proper divisors (424615464).

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

181968696 is a wasteful number, since it uses less digits than its factorization.

181968696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805 (or 27798 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 181968696 is about 13489.5773099086. The cubic root of 181968696 is about 566.6726178537.

The spelling of 181968696 in words is "one hundred eighty-one million, nine hundred sixty-eight thousand, six hundred ninety-six".