120819284 has 12 divisors (see below), whose sum is σ = 214900308. Its totient is φ = 59419200.

The previous prime is 120819247. The next prime is 120819287. The reversal of 120819284 is 482918021.

It can be written as a sum of positive squares in 2 ways, for example, as 40322500 + 80496784 = 6350^2 + 8972^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120819287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247337 + ... + 247824.

It is an arithmetic number, because the mean of its divisors is an integer number (17908359).

Almost surely, 2^120819284 is an apocalyptic number.

It is an amenable number.

120819284 is a deficient number, since it is larger than the sum of its proper divisors (94081024).

120819284 is a wasteful number, since it uses less digits than its factorization.

120819284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495226 (or 495224 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 120819284 is about 10991.7825669907. The cubic root of 120819284 is about 494.3623855105.

The spelling of 120819284 in words is "one hundred twenty million, eight hundred nineteen thousand, two hundred eighty-four".