1393970441 has 2 divisors, whose sum is σ = 1393970442. Its totient is φ = 1393970440.

The previous prime is 1393970429. The next prime is 1393970483. The reversal of 1393970441 is 1440793931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829670416 + 564300025 = 28804^2 + 23755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393970441 - 2⁶ = 1393970377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393970491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696985220 + 696985221.

It is an arithmetic number, because the mean of its divisors is an integer number (696985221).

Almost surely, 2^1393970441 is an apocalyptic number.

It is an amenable number.

1393970441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393970441 is an equidigital number, since it uses as much as digits as its factorization.

1393970441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 1393970441 is about 37335.9135551817. The cubic root of 1393970441 is about 1117.0806307270.

The spelling of 1393970441 in words is "one billion, three hundred ninety-three million, nine hundred seventy thousand, four hundred forty-one".