2450421 has 6 divisors (see below), whose sum is σ = 3539510. Its totient is φ = 1633608.

The previous prime is 2450417. The next prime is 2450453. The reversal of 2450421 is 1240542.

2450421 is a `hidden beast` number, since 245 + 0 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1347921 + 1102500 = 1161^2 + 1050^2 .

It is not a de Polignac number, because 2450421 - 2² = 2450417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2450394 and 2450403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2450491) 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 5 ways as a sum of consecutive naturals, for example, 136126 + ... + 136143.

2^2450421 is an apocalyptic number.

It is an amenable number.

2450421 is a deficient number, since it is larger than the sum of its proper divisors (1089089).

2450421 is a wasteful number, since it uses less digits than its factorization.

2450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272275 (or 272272 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2450421 is about 1565.3820619900. The cubic root of 2450421 is about 134.8176963152.

Adding to 2450421 its reverse (1240542), we get a palindrome (3690963).

The spelling of 2450421 in words is "two million, four hundred fifty thousand, four hundred twenty-one".