128616476 has 12 divisors (see below), whose sum is σ = 226063320. Its totient is φ = 64026960.

The previous prime is 128616463. The next prime is 128616493. The reversal of 128616476 is 674616821.

It is a congruent number.

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, 69290 + ... + 71121.

It is an arithmetic number, because the mean of its divisors is an integer number (18838610).

Almost surely, 2^128616476 is an apocalyptic number.

It is an amenable number.

128616476 is a deficient number, since it is larger than the sum of its proper divisors (97446844).

128616476 is a wasteful number, since it uses less digits than its factorization.

128616476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140644 (or 140642 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 128616476 is about 11340.9204212004. The cubic root of 128616476 is about 504.7761985809.

The spelling of 128616476 in words is "one hundred twenty-eight million, six hundred sixteen thousand, four hundred seventy-six".