2421057 has 8 divisors (see below), whose sum is σ = 3235680. Its totient is φ = 1610240.

The previous prime is 2421053. The next prime is 2421061. The reversal of 2421057 is 7501242.

It is an interprime number because it is at equal distance from previous prime (2421053) and next prime (2421061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421057 - 2² = 2421053 is a prime.

2421057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2421053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (404460).

2^2421057 is an apocalyptic number.

It is an amenable number.

2421057 is a deficient number, since it is larger than the sum of its proper divisors (814623).

2421057 is a wasteful number, since it uses less digits than its factorization.

2421057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2421057 is about 1555.9746141888. The cubic root of 2421057 is about 134.2770128984.

Adding to 2421057 its reverse (7501242), we get a palindrome (9922299).

The spelling of 2421057 in words is "two million, four hundred twenty-one thousand, fifty-seven".