128407022 has 32 divisors (see below), whose sum is σ = 211507200. Its totient is φ = 58275360.

The previous prime is 128407021. The next prime is 128407049. The reversal of 128407022 is 220704821.

It is a junction number, because it is equal to n+sod(n) for n = 128406982 and 128407000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128407021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74729 + ... + 76427.

It is an arithmetic number, because the mean of its divisors is an integer number (6609600).

Almost surely, 2^128407022 is an apocalyptic number.

128407022 is a deficient number, since it is larger than the sum of its proper divisors (83100178).

128407022 is a wasteful number, since it uses less digits than its factorization.

128407022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 128407022 is about 11331.6822228652. The cubic root of 128407022 is about 504.5020376489.

The spelling of 128407022 in words is "one hundred twenty-eight million, four hundred seven thousand, twenty-two".