2042723437 has 2 divisors, whose sum is σ = 2042723438. Its totient is φ = 2042723436.

The previous prime is 2042723407. The next prime is 2042723549. The reversal of 2042723437 is 7343272402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1754436996 + 288286441 = 41886^2 + 16979^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042723437 - 2¹⁹ = 2042199149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042723407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021361718 + 1021361719.

It is an arithmetic number, because the mean of its divisors is an integer number (1021361719).

Almost surely, 2^2042723437 is an apocalyptic number.

It is an amenable number.

2042723437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042723437 is an equidigital number, since it uses as much as digits as its factorization.

2042723437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 34.

The square root of 2042723437 is about 45196.4980612436. The cubic root of 2042723437 is about 1268.8292757635.

Adding to 2042723437 its reverse (7343272402), we get a palindrome (9385995839).

The spelling of 2042723437 in words is "two billion, forty-two million, seven hundred twenty-three thousand, four hundred thirty-seven".