1393539422 has 16 divisors (see below), whose sum is σ = 2280927600. Its totient is φ = 633263040.

The previous prime is 1393539421. The next prime is 1393539443. The reversal of 1393539422 is 2249353931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1393539422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393539421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131954 + ... + 142122.

It is an arithmetic number, because the mean of its divisors is an integer number (142557975).

Almost surely, 2^1393539422 is an apocalyptic number.

1393539422 is a deficient number, since it is larger than the sum of its proper divisors (887388178).

1393539422 is a wasteful number, since it uses less digits than its factorization.

1393539422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16411.

The product of its digits is 174960, while the sum is 41.

The square root of 1393539422 is about 37330.1409319601. The cubic root of 1393539422 is about 1116.9654841893.

The spelling of 1393539422 in words is "one billion, three hundred ninety-three million, five hundred thirty-nine thousand, four hundred twenty-two".