321943934 has 16 divisors (see below), whose sum is σ = 520518768. Its totient is φ = 148459392.

The previous prime is 321943933. The next prime is 321943939. The reversal of 321943934 is 439349123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321943933) 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, 28949 + ... + 38495.

It is an arithmetic number, because the mean of its divisors is an integer number (32532423).

Almost surely, 2^321943934 is an apocalyptic number.

321943934 is a deficient number, since it is larger than the sum of its proper divisors (198574834).

321943934 is a wasteful number, since it uses less digits than its factorization.

321943934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10859.

The product of its digits is 69984, while the sum is 38.

The square root of 321943934 is about 17942.7961589046. The cubic root of 321943934 is about 685.3726169926.

The spelling of 321943934 in words is "three hundred twenty-one million, nine hundred forty-three thousand, nine hundred thirty-four".