2342421 has 6 divisors (see below), whose sum is σ = 3383510. Its totient is φ = 1561608.

The previous prime is 2342419. The next prime is 2342423. The reversal of 2342421 is 1242432.

It is an interprime number because it is at equal distance from previous prime (2342419) and next prime (2342423).

It can be written as a sum of positive squares in only one way, i.e., 2340900 + 1521 = 1530^2 + 39^2 .

It is not a de Polignac number, because 2342421 - 2¹ = 2342419 is a prime.

It is a super-2 number, since 2×2342421² = 10973872282482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2342394 and 2342403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2342423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130126 + ... + 130143.

2^2342421 is an apocalyptic number.

It is an amenable number.

2342421 is a deficient number, since it is larger than the sum of its proper divisors (1041089).

2342421 is a wasteful number, since it uses less digits than its factorization.

2342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260275 (or 260272 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2342421 is about 1530.4969781087. The cubic root of 2342421 is about 132.8072093210.

Adding to 2342421 its reverse (1242432), we get a palindrome (3584853).

The spelling of 2342421 in words is "two million, three hundred forty-two thousand, four hundred twenty-one".