128466998 has 8 divisors (see below), whose sum is σ = 210218760. Its totient is φ = 58394080.

The previous prime is 128466973. The next prime is 128467033. The reversal of 128466998 is 899664821.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2919683 + ... + 2919726.

It is an arithmetic number, because the mean of its divisors is an integer number (26277345).

Almost surely, 2^128466998 is an apocalyptic number.

128466998 is a deficient number, since it is larger than the sum of its proper divisors (81751762).

128466998 is a wasteful number, since it uses less digits than its factorization.

128466998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839422.

The product of its digits is 1492992, while the sum is 53.

The square root of 128466998 is about 11334.3282994627. The cubic root of 128466998 is about 504.5805725660.

The spelling of 128466998 in words is "one hundred twenty-eight million, four hundred sixty-six thousand, nine hundred ninety-eight".