128093820 has 48 divisors (see below), whose sum is σ = 377543040. Its totient is φ = 32360256.

The previous prime is 128093813. The next prime is 128093821. The reversal of 128093820 is 28390821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128093821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55042 + ... + 57321.

It is an arithmetic number, because the mean of its divisors is an integer number (7865480).

Almost surely, 2^128093820 is an apocalyptic number.

128093820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128093820 is an abundant number, since it is smaller than the sum of its proper divisors (249449220).

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

128093820 is a wasteful number, since it uses less digits than its factorization.

128093820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112394 (or 112392 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 128093820 is about 11317.8540368747. The cubic root of 128093820 is about 504.0915209207.

The spelling of 128093820 in words is "one hundred twenty-eight million, ninety-three thousand, eight hundred twenty".