2042640601 has 2 divisors, whose sum is σ = 2042640602. Its totient is φ = 2042640600.

The previous prime is 2042640599. The next prime is 2042640643. The reversal of 2042640601 is 1060462402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1720258576 + 322382025 = 41476^2 + 17955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042640601 - 2¹ = 2042640599 is a prime.

Together with 2042640599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2042640701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021320300 + 1021320301.

It is an arithmetic number, because the mean of its divisors is an integer number (1021320301).

Almost surely, 2^2042640601 is an apocalyptic number.

It is an amenable number.

2042640601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042640601 is an equidigital number, since it uses as much as digits as its factorization.

2042640601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2042640601 is about 45195.5816535201. The cubic root of 2042640601 is about 1268.8121244512.

The spelling of 2042640601 in words is "two billion, forty-two million, six hundred forty thousand, six hundred one".