2519421 has 8 divisors (see below), whose sum is σ = 3368640. Its totient is φ = 1674912.

The previous prime is 2519393. The next prime is 2519423. The reversal of 2519421 is 1249152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2519421 - 2¹⁴ = 2503037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2519391 and 2519400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2519423) 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 7 ways as a sum of consecutive naturals, for example, 361 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (421080).

2^2519421 is an apocalyptic number.

It is an amenable number.

2519421 is a deficient number, since it is larger than the sum of its proper divisors (849219).

2519421 is a wasteful number, since it uses less digits than its factorization.

2519421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355.

The product of its digits is 720, while the sum is 24.

The square root of 2519421 is about 1587.2684083040. The cubic root of 2519421 is about 136.0714193797.

The spelling of 2519421 in words is "two million, five hundred nineteen thousand, four hundred twenty-one".