128002924 has 24 divisors (see below), whose sum is σ = 269480960. Its totient is φ = 51970896.

The previous prime is 128002921. The next prime is 128002933. The reversal of 128002924 is 429200821.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 128002892 and 128002901.

It is not an unprimeable number, because it can be changed into a prime (128002921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119772 + ... + 120835.

Almost surely, 2^128002924 is an apocalyptic number.

128002924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128002924 is an abundant number, since it is smaller than the sum of its proper divisors (141478036).

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

128002924 is a wasteful number, since it uses less digits than its factorization.

128002924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240637 (or 240635 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 128002924 is about 11313.8377220110. The cubic root of 128002924 is about 503.9722574383.

The spelling of 128002924 in words is "one hundred twenty-eight million, two thousand, nine hundred twenty-four".