1842262921 has 2 divisors, whose sum is σ = 1842262922. Its totient is φ = 1842262920.

The previous prime is 1842262913. The next prime is 1842262931. The reversal of 1842262921 is 1292622481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452753225 + 389509696 = 38115^2 + 19736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842262921 - 2³ = 1842262913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1842262931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921131460 + 921131461.

It is an arithmetic number, because the mean of its divisors is an integer number (921131461).

Almost surely, 2^1842262921 is an apocalyptic number.

It is an amenable number.

1842262921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842262921 is an equidigital number, since it uses as much as digits as its factorization.

1842262921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 1842262921 is about 42921.5903829297. The cubic root of 1842262921 is about 1225.8872752200.

The spelling of 1842262921 in words is "one billion, eight hundred forty-two million, two hundred sixty-two thousand, nine hundred twenty-one".