120277278 has 128 divisors (see below), whose sum is σ = 317053440. Its totient is φ = 33384960.

The previous prime is 120277253. The next prime is 120277279. The reversal of 120277278 is 872772021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120277279) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 434076 + ... + 434352.

It is an arithmetic number, because the mean of its divisors is an integer number (2476980).

Almost surely, 2^120277278 is an apocalyptic number.

120277278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120277278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158526720).

120277278 is an abundant number, since it is smaller than the sum of its proper divisors (196776162).

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

120277278 is a wasteful number, since it uses less digits than its factorization.

120277278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 120277278 is about 10967.0997989441. The cubic root of 120277278 is about 493.6220261617.

The spelling of 120277278 in words is "one hundred twenty million, two hundred seventy-seven thousand, two hundred seventy-eight".