120634128 has 30 divisors (see below), whose sum is σ = 337608414. Its totient is φ = 40211328.

The previous prime is 120634121. The next prime is 120634133. The reversal of 120634128 is 821436021.

120634128 is a `hidden beast` number, since 1 + 2 + 0 + 634 + 1 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 106254864 + 14379264 = 10308^2 + 3792^2 .

It is not an unprimeable number, because it can be changed into a prime (120634121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 418725 + ... + 419012.

Almost surely, 2^120634128 is an apocalyptic number.

120634128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

120634128 is an abundant number, since it is smaller than the sum of its proper divisors (216974286).

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

120634128 is a wasteful number, since it uses less digits than its factorization.

120634128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837751 (or 837742 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 120634128 is about 10983.3568639100. The cubic root of 120634128 is about 494.1097190004.

The spelling of 120634128 in words is "one hundred twenty million, six hundred thirty-four thousand, one hundred twenty-eight".