2391424 has 64 divisors (see below), whose sum is σ = 5801760. Its totient is φ = 958464.

The previous prime is 2391401. The next prime is 2391437. The reversal of 2391424 is 4241932.

2391424 = T₅ + T₆ + ... + T₂₄₂.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15154 + ... + 15310.

2^2391424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2391424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2900880).

2391424 is an abundant number, since it is smaller than the sum of its proper divisors (3410336).

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

2391424 is a wasteful number, since it uses less digits than its factorization.

2391424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 183 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2391424 is about 1546.4229693069. The cubic root of 2391424 is about 133.7269258824.

The spelling of 2391424 in words is "two million, three hundred ninety-one thousand, four hundred twenty-four".