120642750 has 128 divisors (see below), whose sum is σ = 341228160. Its totient is φ = 31536000.

The previous prime is 120642733. The next prime is 120642757. The reversal of 120642750 is 57246021.

120642750 is a `hidden beast` number, since 12 + 0 + 642 + 7 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120642757) 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, 411604 + ... + 411896.

It is an arithmetic number, because the mean of its divisors is an integer number (2665845).

Almost surely, 2^120642750 is an apocalyptic number.

120642750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120642750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170614080).

120642750 is an abundant number, since it is smaller than the sum of its proper divisors (220585410).

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

120642750 is a wasteful number, since it uses less digits than its factorization.

120642750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 120642750 is about 10983.7493598498. The cubic root of 120642750 is about 494.1214904413.

Adding to 120642750 its reverse (57246021), we get a palindrome (177888771).

It can be divided in two parts, 1206 and 42750, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 120642750 in words is "one hundred twenty million, six hundred forty-two thousand, seven hundred fifty".