1393212002 has 36 divisors (see below), whose sum is σ = 2632429746. Its totient is φ = 551154240.

The previous prime is 1393211987. The next prime is 1393212043. The reversal of 1393212002 is 2002123931.

It can be written as a sum of positive squares in 3 ways, for example, as 286252561 + 1106959441 = 16919^2 + 33271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25499 + ... + 58622.

Almost surely, 2^1393212002 is an apocalyptic number.

1393212002 is a deficient number, since it is larger than the sum of its proper divisors (1239217744).

1393212002 is a wasteful number, since it uses less digits than its factorization.

1393212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84163 (or 84143 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1393212002 is about 37325.7552100423. The cubic root of 1393212002 is about 1116.8779982095.

Adding to 1393212002 its reverse (2002123931), we get a palindrome (3395335933).

The spelling of 1393212002 in words is "one billion, three hundred ninety-three million, two hundred twelve thousand, two".