2241621 has 8 divisors (see below), whose sum is σ = 3320960. Its totient is φ = 1494396.

The previous prime is 2241607. The next prime is 2241667. The reversal of 2241621 is 1261422.

2241621 is a `hidden beast` number, since 2 + 2 + 41 + 621 = 666.

It is not a de Polignac number, because 2241621 - 2¹⁰ = 2240597 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2241594 and 2241603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241691) 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, 41485 + ... + 41538.

It is an arithmetic number, because the mean of its divisors is an integer number (415120).

2^2241621 is an apocalyptic number.

It is an amenable number.

2241621 is a deficient number, since it is larger than the sum of its proper divisors (1079339).

2241621 is an equidigital number, since it uses as much as digits as its factorization.

2241621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83032 (or 83026 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2241621 is about 1497.2043948640. The cubic root of 2241621 is about 130.8742066930.

The spelling of 2241621 in words is "two million, two hundred forty-one thousand, six hundred twenty-one".