128422344 has 16 divisors (see below), whose sum is σ = 321055920. Its totient is φ = 42807440.

The previous prime is 128422309. The next prime is 128422351. The reversal of 128422344 is 443224821.

It is a nude number because it is divisible by every one of its digits.

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, 2675442 + ... + 2675489.

It is an arithmetic number, because the mean of its divisors is an integer number (20065995).

Almost surely, 2^128422344 is an apocalyptic number.

It is an amenable number.

128422344 is an abundant number, since it is smaller than the sum of its proper divisors (192633576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128422344 is a wasteful number, since it uses less digits than its factorization.

128422344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350940 (or 5350936 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 128422344 is about 11332.3582717809. The cubic root of 128422344 is about 504.5221031995.

The spelling of 128422344 in words is "one hundred twenty-eight million, four hundred twenty-two thousand, three hundred forty-four".