2891424 has 24 divisors (see below), whose sum is σ = 7590240. Its totient is φ = 963776.

The previous prime is 2891419. The next prime is 2891429. The reversal of 2891424 is 4241982.

It is an interprime number because it is at equal distance from previous prime (2891419) and next prime (2891429).

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 2891391 and 2891400.

It is not an unprimeable number, because it can be changed into a prime (2891429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14964 + ... + 15155.

It is an arithmetic number, because the mean of its divisors is an integer number (316260).

2^2891424 is an apocalyptic number.

2891424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2891424 is an abundant number, since it is smaller than the sum of its proper divisors (4698816).

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

2891424 is a wasteful number, since it uses less digits than its factorization.

2891424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30132 (or 30124 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 2891424 is about 1700.4187719500. The cubic root of 2891424 is about 142.4636041244.

The spelling of 2891424 in words is "two million, eight hundred ninety-one thousand, four hundred twenty-four".