2619421 has 4 divisors (see below), whose sum is σ = 2993632. Its totient is φ = 2245212.

The previous prime is 2619413. The next prime is 2619433. The reversal of 2619421 is 1249162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2619421 - 2³ = 2619413 is a prime.

It is a super-2 number, since 2×2619421² = 13722732750482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2619481) 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 3 ways as a sum of consecutive naturals, for example, 187095 + ... + 187108.

It is an arithmetic number, because the mean of its divisors is an integer number (748408).

2^2619421 is an apocalyptic number.

It is an amenable number.

2619421 is a deficient number, since it is larger than the sum of its proper divisors (374211).

2619421 is an equidigital number, since it uses as much as digits as its factorization.

2619421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374210.

The product of its digits is 864, while the sum is 25.

The square root of 2619421 is about 1618.4625420441. The cubic root of 2619421 is about 137.8484122776.

The spelling of 2619421 in words is "two million, six hundred nineteen thousand, four hundred twenty-one".