1957340029 has 2 divisors, whose sum is σ = 1957340030. Its totient is φ = 1957340028.

The previous prime is 1957340027. The next prime is 1957340039. The reversal of 1957340029 is 9200437591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1925191129 + 32148900 = 43877^2 + 5670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1957340029 - 2¹ = 1957340027 is a prime.

Together with 1957340027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1957339973 and 1957340000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1957340027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978670014 + 978670015.

It is an arithmetic number, because the mean of its divisors is an integer number (978670015).

Almost surely, 2^1957340029 is an apocalyptic number.

It is an amenable number.

1957340029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957340029 is an equidigital number, since it uses as much as digits as its factorization.

1957340029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1957340029 is about 44241.8357327089. The cubic root of 1957340029 is about 1250.8985601037.

The spelling of 1957340029 in words is "one billion, nine hundred fifty-seven million, three hundred forty thousand, twenty-nine".