2909424 has 60 divisors (see below), whose sum is σ = 8750184. Its totient is φ = 830592.

The previous prime is 2909419. The next prime is 2909429. The reversal of 2909424 is 4249092.

It is an interprime number because it is at equal distance from previous prime (2909419) and next prime (2909429).

It is a junction number, because it is equal to n+sod(n) for n = 2909391 and 2909400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1734 + ... + 2970.

2^2909424 is an apocalyptic number.

2909424 is a gapful number since it is divisible by the number (24) 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 2909424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4375092).

2909424 is an abundant number, since it is smaller than the sum of its proper divisors (5840760).

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

2909424 is a wasteful number, since it uses less digits than its factorization.

2909424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2909424 is about 1705.7033739780. The cubic root of 2909424 is about 142.7586193055.

It can be divided in two parts, 2909 and 424, that added together give a palindrome (3333).

The spelling of 2909424 in words is "two million, nine hundred nine thousand, four hundred twenty-four".