120403779 has 8 divisors (see below), whose sum is σ = 168987840. Its totient is φ = 76044456.

The previous prime is 120403769. The next prime is 120403799. The reversal of 120403779 is 977304021.

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

It is not a de Polignac number, because 120403779 - 2⁴ = 120403763 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (120403709) 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, 1056117 + ... + 1056230.

It is an arithmetic number, because the mean of its divisors is an integer number (21123480).

Almost surely, 2^120403779 is an apocalyptic number.

120403779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

120403779 is a deficient number, since it is larger than the sum of its proper divisors (48584061).

120403779 is a wasteful number, since it uses less digits than its factorization.

120403779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112369.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 120403779 is about 10972.8655783255. The cubic root of 120403779 is about 493.7950203247.

The spelling of 120403779 in words is "one hundred twenty million, four hundred three thousand, seven hundred seventy-nine".