321946364 has 12 divisors (see below), whose sum is σ = 587902224. Its totient is φ = 153974304.

The previous prime is 321946351. The next prime is 321946367. The reversal of 321946364 is 463649123.

It is a happy number.

It is a super-2 number, since 2×321946364² = 207298922585640992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321946367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749617 + ... + 1749800.

It is an arithmetic number, because the mean of its divisors is an integer number (48991852).

Almost surely, 2^321946364 is an apocalyptic number.

It is an amenable number.

321946364 is a deficient number, since it is larger than the sum of its proper divisors (265955860).

321946364 is a wasteful number, since it uses less digits than its factorization.

321946364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499444 (or 3499442 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 321946364 is about 17942.8638739751. The cubic root of 321946364 is about 685.3743413625.

The spelling of 321946364 in words is "three hundred twenty-one million, nine hundred forty-six thousand, three hundred sixty-four".