128462944 has 12 divisors (see below), whose sum is σ = 252911484. Its totient is φ = 64231456.

The previous prime is 128462911. The next prime is 128462951. The reversal of 128462944 is 449264821.

It is a super-2 number, since 2×128462944² = 33005455962294272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128462897 and 128462906.

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, 2007202 + ... + 2007265.

It is an arithmetic number, because the mean of its divisors is an integer number (21075957).

Almost surely, 2^128462944 is an apocalyptic number.

It is an amenable number.

128462944 is a deficient number, since it is larger than the sum of its proper divisors (124448540).

128462944 is an equidigital number, since it uses as much as digits as its factorization.

128462944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014477 (or 4014469 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 128462944 is about 11334.1494608109. The cubic root of 128462944 is about 504.5752648704.

The spelling of 128462944 in words is "one hundred twenty-eight million, four hundred sixty-two thousand, nine hundred forty-four".