128370290 has 32 divisors (see below), whose sum is σ = 235279296. Its totient is φ = 50420160.

The previous prime is 128370259. The next prime is 128370299. The reversal of 128370290 is 92073821.

It is not an unprimeable number, because it can be changed into a prime (128370299) 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, 174764 + ... + 175496.

It is an arithmetic number, because the mean of its divisors is an integer number (7352478).

Almost surely, 2^128370290 is an apocalyptic number.

128370290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128370290 is a deficient number, since it is larger than the sum of its proper divisors (106909006).

128370290 is a wasteful number, since it uses less digits than its factorization.

128370290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 128370290 is about 11330.0613414050. The cubic root of 128370290 is about 504.4539272578.

The spelling of 128370290 in words is "one hundred twenty-eight million, three hundred seventy thousand, two hundred ninety".