321422460 has 24 divisors (see below), whose sum is σ = 899983056. Its totient is φ = 85712640.

The previous prime is 321422459. The next prime is 321422461. The reversal of 321422460 is 64224123.

It is an interprime number because it is at equal distance from previous prime (321422459) and next prime (321422461).

It is a self number, because there is not a number n which added to its sum of digits gives 321422460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321422461) 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, 2678461 + ... + 2678580.

It is an arithmetic number, because the mean of its divisors is an integer number (37499294).

Almost surely, 2^321422460 is an apocalyptic number.

321422460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321422460 is an abundant number, since it is smaller than the sum of its proper divisors (578560596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321422460 is a wasteful number, since it uses less digits than its factorization.

321422460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357053 (or 5357051 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 321422460 is about 17928.2586996060. The cubic root of 321422460 is about 685.0023691466.

Adding to 321422460 its reverse (64224123), we get a palindrome (385646583).

The spelling of 321422460 in words is "three hundred twenty-one million, four hundred twenty-two thousand, four hundred sixty".