128903378 has 8 divisors (see below), whose sum is σ = 193424268. Its totient is φ = 64428624.

The previous prime is 128903329. The next prime is 128903389. The reversal of 128903378 is 873309821.

It can be written as a sum of positive squares in 2 ways, for example, as 128890609 + 12769 = 11353^2 + 113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401 + ... + 16412.

Almost surely, 2^128903378 is an apocalyptic number.

128903378 is a deficient number, since it is larger than the sum of its proper divisors (64520890).

128903378 is a wasteful number, since it uses less digits than its factorization.

128903378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23068.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 128903378 is about 11353.5623484438. The cubic root of 128903378 is about 505.1512509729.

The spelling of 128903378 in words is "one hundred twenty-eight million, nine hundred three thousand, three hundred seventy-eight".