17238940 has 12 divisors (see below), whose sum is σ = 36201816. Its totient is φ = 6895568.

The previous prime is 17238913. The next prime is 17238943. The reversal of 17238940 is 4983271.

It is a junction number, because it is equal to n+sod(n) for n = 17238896 and 17238905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17238943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430954 + ... + 430993.

It is an arithmetic number, because the mean of its divisors is an integer number (3016818).

Almost surely, 2^17238940 is an apocalyptic number.

17238940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17238940 is an abundant number, since it is smaller than the sum of its proper divisors (18962876).

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

17238940 is a wasteful number, since it uses less digits than its factorization.

17238940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861956 (or 861954 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 17238940 is about 4151.9802504347. The cubic root of 17238940 is about 258.3272293621.

The spelling of 17238940 in words is "seventeen million, two hundred thirty-eight thousand, nine hundred forty".