2392421 has 2 divisors, whose sum is σ = 2392422. Its totient is φ = 2392420.

The previous prime is 2392373. The next prime is 2392433. The reversal of 2392421 is 1242932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 829921 = 1250^2 + 911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2392421 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 3⁵ + 9² + 2¹⁵ + 4⁹ + 2²¹ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2392021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196210 + 1196211.

It is an arithmetic number, because the mean of its divisors is an integer number (1196211).

2^2392421 is an apocalyptic number.

It is an amenable number.

2392421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2392421 is an equidigital number, since it uses as much as digits as its factorization.

2392421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 2392421 is about 1546.7452925417. The cubic root of 2392421 is about 133.7455071714.

The spelling of 2392421 in words is "two million, three hundred ninety-two thousand, four hundred twenty-one".