128676950 has 24 divisors (see below), whose sum is σ = 249747408. Its totient is φ = 49232480.

The previous prime is 128676937. The next prime is 128676959. The reversal of 128676950 is 59676821.

It is a super-2 number, since 2×128676950² = 33115514922605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128676959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54797 + ... + 57096.

It is an arithmetic number, because the mean of its divisors is an integer number (10406142).

Almost surely, 2^128676950 is an apocalyptic number.

128676950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128676950 is a deficient number, since it is larger than the sum of its proper divisors (121070458).

128676950 is a wasteful number, since it uses less digits than its factorization.

128676950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111928 (or 111923 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 128676950 is about 11343.5862935846. The cubic root of 128676950 is about 504.8552995218.

The spelling of 128676950 in words is "one hundred twenty-eight million, six hundred seventy-six thousand, nine hundred fifty".