117820426 has 8 divisors (see below), whose sum is σ = 176801184. Its totient is φ = 58886700.

The previous prime is 117820403. The next prime is 117820427. The reversal of 117820426 is 624028711.

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

It is a super-3 number, since 3×117820426³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (117820427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630 + ... + 16033.

It is an arithmetic number, because the mean of its divisors is an integer number (22100148).

Almost surely, 2^117820426 is an apocalyptic number.

117820426 is a deficient number, since it is larger than the sum of its proper divisors (58980758).

117820426 is a wasteful number, since it uses less digits than its factorization.

117820426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23516.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 117820426 is about 10854.5117808218. The cubic root of 117820426 is about 490.2378770039.

The spelling of 117820426 in words is "one hundred seventeen million, eight hundred twenty thousand, four hundred twenty-six".