2421393 has 16 divisors (see below), whose sum is σ = 3553536. Its totient is φ = 1457280.

The previous prime is 2421389. The next prime is 2421403. The reversal of 2421393 is 3931242.

It is not a de Polignac number, because 2421393 - 2² = 2421389 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2421343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (222096).

2^2421393 is an apocalyptic number.

It is an amenable number.

2421393 is a deficient number, since it is larger than the sum of its proper divisors (1132143).

2421393 is a wasteful number, since it uses less digits than its factorization.

2421393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its digits is 1296, while the sum is 24.

The square root of 2421393 is about 1556.0825813561. The cubic root of 2421393 is about 134.2832243713.

The spelling of 2421393 in words is "two million, four hundred twenty-one thousand, three hundred ninety-three".