128492632 has 16 divisors (see below), whose sum is σ = 243827640. Its totient is φ = 63471936.

The previous prime is 128492563. The next prime is 128492633. The reversal of 128492632 is 236294821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128492591 and 128492600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128492633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96093 + ... + 97420.

Almost surely, 2^128492632 is an apocalyptic number.

It is an amenable number.

128492632 is a deficient number, since it is larger than the sum of its proper divisors (115335008).

128492632 is a wasteful number, since it uses less digits than its factorization.

128492632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193602 (or 193598 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 128492632 is about 11335.4590555478. The cubic root of 128492632 is about 504.6141312708.

The spelling of 128492632 in words is "one hundred twenty-eight million, four hundred ninety-two thousand, six hundred thirty-two".