120288839 has 32 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 100979200.

The previous prime is 120288823. The next prime is 120288841. The reversal of 120288839 is 938882021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120288839 - 2⁴ = 120288823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120288796 and 120288805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120288869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1064447 + ... + 1064559.

It is an arithmetic number, because the mean of its divisors is an integer number (4432320).

Almost surely, 2^120288839 is an apocalyptic number.

120288839 is a deficient number, since it is larger than the sum of its proper divisors (21545401).

120288839 is a wasteful number, since it uses less digits than its factorization.

120288839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 120288839 is about 10967.6268627265. The cubic root of 120288839 is about 493.6378412337.

The spelling of 120288839 in words is "one hundred twenty million, two hundred eighty-eight thousand, eight hundred thirty-nine".