120861378 has 48 divisors (see below), whose sum is σ = 286412256. Its totient is φ = 36529920.

The previous prime is 120861373. The next prime is 120861401. The reversal of 120861378 is 873168021.

It is not an unprimeable number, because it can be changed into a prime (120861373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132801 + ... + 133707.

It is an arithmetic number, because the mean of its divisors is an integer number (5966922).

Almost surely, 2^120861378 is an apocalyptic number.

120861378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

120861378 is an abundant number, since it is smaller than the sum of its proper divisors (165550878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120861378 is a wasteful number, since it uses less digits than its factorization.

120861378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1596 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 120861378 is about 10993.6971943018. The cubic root of 120861378 is about 494.4197915617.

The spelling of 120861378 in words is "one hundred twenty million, eight hundred sixty-one thousand, three hundred seventy-eight".