1074444391 has 2 divisors, whose sum is σ = 1074444392. Its totient is φ = 1074444390.

The previous prime is 1074444383. The next prime is 1074444451. The reversal of 1074444391 is 1934444701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1074444391 - 2³ = 1074444383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1074444391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074444331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537222195 + 537222196.

It is an arithmetic number, because the mean of its divisors is an integer number (537222196).

Almost surely, 2^1074444391 is an apocalyptic number.

1074444391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074444391 is an equidigital number, since it uses as much as digits as its factorization.

1074444391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1074444391 is about 32778.7185686079. The cubic root of 1074444391 is about 1024.2232913405.

The spelling of 1074444391 in words is "one billion, seventy-four million, four hundred forty-four thousand, three hundred ninety-one".