1970442371 has 2 divisors, whose sum is σ = 1970442372. Its totient is φ = 1970442370.

The previous prime is 1970442347. The next prime is 1970442373. The reversal of 1970442371 is 1732440791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970442371 is a prime.

Together with 1970442373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1970442373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985221185 + 985221186.

It is an arithmetic number, because the mean of its divisors is an integer number (985221186).

Almost surely, 2^1970442371 is an apocalyptic number.

1970442371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970442371 is an equidigital number, since it uses as much as digits as its factorization.

1970442371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1970442371 is about 44389.6651372817. The cubic root of 1970442371 is about 1253.6835072374.

The spelling of 1970442371 in words is "one billion, nine hundred seventy million, four hundred forty-two thousand, three hundred seventy-one".