120686224 has 60 divisors (see below), whose sum is σ = 248234112. Its totient is φ = 56811840.

The previous prime is 120686219. The next prime is 120686231. The reversal of 120686224 is 422686021.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 722589 + ... + 722755.

Almost surely, 2^120686224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120686224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124117056).

120686224 is an abundant number, since it is smaller than the sum of its proper divisors (127547888).

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

120686224 is a wasteful number, since it uses less digits than its factorization.

120686224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 120686224 is about 10985.7281961643. The cubic root of 120686224 is about 494.1808360654.

The spelling of 120686224 in words is "one hundred twenty million, six hundred eighty-six thousand, two hundred twenty-four".