1352644394 has 4 divisors (see below), whose sum is σ = 2028966594. Its totient is φ = 676322196.

The previous prime is 1352644393. The next prime is 1352644411. The reversal of 1352644394 is 4934462531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1170529369 + 182115025 = 34213^2 + 13495^2 .

It is not an unprimeable number, because it can be changed into a prime (1352644393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338161097 + ... + 338161100.

Almost surely, 2^1352644394 is an apocalyptic number.

1352644394 is a deficient number, since it is larger than the sum of its proper divisors (676322200).

1352644394 is an equidigital number, since it uses as much as digits as its factorization.

1352644394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676322199.

The product of its digits is 311040, while the sum is 41.

The square root of 1352644394 is about 36778.3141810497. The cubic root of 1352644394 is about 1105.9306108346.

The spelling of 1352644394 in words is "one billion, three hundred fifty-two million, six hundred forty-four thousand, three hundred ninety-four".