120777838 has 8 divisors (see below), whose sum is σ = 184237560. Its totient is φ = 59365320.

The previous prime is 120777799. The next prime is 120777869. The reversal of 120777838 is 838777021.

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

It is a junction number, because it is equal to n+sod(n) for n = 120777794 and 120777803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511653 + ... + 511888.

It is an arithmetic number, because the mean of its divisors is an integer number (23029695).

Almost surely, 2^120777838 is an apocalyptic number.

120777838 is a deficient number, since it is larger than the sum of its proper divisors (63459722).

120777838 is a wasteful number, since it uses less digits than its factorization.

120777838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023602.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 120777838 is about 10989.8970877802. The cubic root of 120777838 is about 494.3058501460.

The spelling of 120777838 in words is "one hundred twenty million, seven hundred seventy-seven thousand, eight hundred thirty-eight".