128949484 has 6 divisors (see below), whose sum is σ = 225661604. Its totient is φ = 64474740.

The previous prime is 128949481. The next prime is 128949497. The reversal of 128949484 is 484949821.

It is not an unprimeable number, because it can be changed into a prime (128949481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16118682 + ... + 16118689.

Almost surely, 2^128949484 is an apocalyptic number.

It is an amenable number.

128949484 is a deficient number, since it is larger than the sum of its proper divisors (96712120).

128949484 is a wasteful number, since it uses less digits than its factorization.

128949484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32237375 (or 32237373 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 128949484 is about 11355.5926309462. The cubic root of 128949484 is about 505.2114710842.

The spelling of 128949484 in words is "one hundred twenty-eight million, nine hundred forty-nine thousand, four hundred eighty-four".