120440215 has 8 divisors (see below), whose sum is σ = 165175200. Its totient is φ = 82587552.

The previous prime is 120440197. The next prime is 120440237. The reversal of 120440215 is 512044021.

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

It is a cyclic number.

It is not a de Polignac number, because 120440215 - 2⁹ = 120439703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120440192 and 120440201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720540 + ... + 1720609.

It is an arithmetic number, because the mean of its divisors is an integer number (20646900).

Almost surely, 2^120440215 is an apocalyptic number.

120440215 is a deficient number, since it is larger than the sum of its proper divisors (44734985).

120440215 is an equidigital number, since it uses as much as digits as its factorization.

120440215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441161.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 120440215 is about 10974.5257300714. The cubic root of 120440215 is about 493.8448252421.

Adding to 120440215 its reverse (512044021), we get a palindrome (632484236).

The spelling of 120440215 in words is "one hundred twenty million, four hundred forty thousand, two hundred fifteen".