117481628 has 24 divisors (see below), whose sum is σ = 237477744. Its totient is φ = 50259200.

The previous prime is 117481627. The next prime is 117481657. The reversal of 117481628 is 826184711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 117481591 and 117481600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117481627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77783 + ... + 79278.

It is an arithmetic number, because the mean of its divisors is an integer number (9894906).

Almost surely, 2^117481628 is an apocalyptic number.

It is an amenable number.

117481628 is an abundant number, since it is smaller than the sum of its proper divisors (119996116).

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

117481628 is a wasteful number, since it uses less digits than its factorization.

117481628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157093 (or 157091 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 117481628 is about 10838.8942240433. The cubic root of 117481628 is about 489.7675254300.

The spelling of 117481628 in words is "one hundred seventeen million, four hundred eighty-one thousand, six hundred twenty-eight".