128469496 has 8 divisors (see below), whose sum is σ = 240880320. Its totient is φ = 64234744.

The previous prime is 128469479. The next prime is 128469503. The reversal of 128469496 is 694964821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×128469496² = 33008822804988032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8029336 + ... + 8029351.

It is an arithmetic number, because the mean of its divisors is an integer number (30110040).

Almost surely, 2^128469496 is an apocalyptic number.

It is an amenable number.

128469496 is a deficient number, since it is larger than the sum of its proper divisors (112410824).

128469496 is a wasteful number, since it uses less digits than its factorization.

128469496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16058693 (or 16058689 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 128469496 is about 11334.4384951351. The cubic root of 128469496 is about 504.5838430145.

The spelling of 128469496 in words is "one hundred twenty-eight million, four hundred sixty-nine thousand, four hundred ninety-six".