2442908621 has 2 divisors, whose sum is σ = 2442908622. Its totient is φ = 2442908620.

The previous prime is 2442908563. The next prime is 2442908623. The reversal of 2442908621 is 1268092442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1976780521 + 466128100 = 44461^2 + 21590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442908621 - 2¹⁴ = 2442892237 is a prime.

It is a super-2 number, since 2×2442908621² = 11935605061112243282, which contains 22 as substring.

Together with 2442908623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2442908623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221454310 + 1221454311.

It is an arithmetic number, because the mean of its divisors is an integer number (1221454311).

Almost surely, 2^2442908621 is an apocalyptic number.

It is an amenable number.

2442908621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442908621 is an equidigital number, since it uses as much as digits as its factorization.

2442908621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 2442908621 is about 49425.7890275917. The cubic root of 2442908621 is about 1346.7978281704.

The spelling of 2442908621 in words is "two billion, four hundred forty-two million, nine hundred eight thousand, six hundred twenty-one".