24128940 has 48 divisors (see below), whose sum is σ = 73704960. Its totient is φ = 5849280.

The previous prime is 24128903. The next prime is 24128941. The reversal of 24128940 is 4982142.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 24128898 and 24128907.

It is not an unprimeable number, because it can be changed into a prime (24128941) 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, 17620 + ... + 18939.

It is an arithmetic number, because the mean of its divisors is an integer number (1535520).

Almost surely, 2^24128940 is an apocalyptic number.

24128940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24128940 is an abundant number, since it is smaller than the sum of its proper divisors (49576020).

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

24128940 is a wasteful number, since it uses less digits than its factorization.

24128940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36582 (or 36580 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 24128940 is about 4912.1217411624. The cubic root of 24128940 is about 288.9655574507.

The spelling of 24128940 in words is "twenty-four million, one hundred twenty-eight thousand, nine hundred forty".