2717428 has 48 divisors (see below), whose sum is σ = 5805184. Its totient is φ = 1088640.

The previous prime is 2717423. The next prime is 2717441. The reversal of 2717428 is 8247172.

It is a self number, because there is not a number n which added to its sum of digits gives 2717428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2717423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44518 + ... + 44578.

2^2717428 is an apocalyptic number.

2717428 is a gapful number since it is divisible by the number (28) 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 2717428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2902592).

2717428 is an abundant number, since it is smaller than the sum of its proper divisors (3087756).

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

2717428 is a wasteful number, since it uses less digits than its factorization.

2717428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 150 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 2717428 is about 1648.4623137943. The cubic root of 2717428 is about 139.5466286401.

The spelling of 2717428 in words is "two million, seven hundred seventeen thousand, four hundred twenty-eight".