1321941892 has 12 divisors (see below), whose sum is σ = 2347927120. Its totient is φ = 651105576.

The previous prime is 1321941827. The next prime is 1321941893. The reversal of 1321941892 is 2981491231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1321941893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2466042 + ... + 2466577.

Almost surely, 2^1321941892 is an apocalyptic number.

It is an amenable number.

1321941892 is a deficient number, since it is larger than the sum of its proper divisors (1025985228).

1321941892 is a wasteful number, since it uses less digits than its factorization.

1321941892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932690 (or 4932688 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 1321941892 is about 36358.5188367183. The cubic root of 1321941892 is about 1097.4989712580.

The spelling of 1321941892 in words is "one billion, three hundred twenty-one million, nine hundred forty-one thousand, eight hundred ninety-two".