17072940 has 96 divisors (see below), whose sum is σ = 50448384. Its totient is φ = 4308480.

The previous prime is 17072929. The next prime is 17072941. The reversal of 17072940 is 4927071.

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 = 17072898 and 17072907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17072941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124552 + ... + 124688.

It is an arithmetic number, because the mean of its divisors is an integer number (525504).

Almost surely, 2^17072940 is an apocalyptic number.

17072940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17072940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25224192).

17072940 is an abundant number, since it is smaller than the sum of its proper divisors (33375444).

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

17072940 is a wasteful number, since it uses less digits than its factorization.

17072940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 17072940 is about 4131.9414323052. The cubic root of 17072940 is about 257.4953780551.

The spelling of 17072940 in words is "seventeen million, seventy-two thousand, nine hundred forty".