321099480 has 96 divisors (see below), whose sum is σ = 1123864560. Its totient is φ = 79038720.

The previous prime is 321099469. The next prime is 321099497. The reversal of 321099480 is 84990123.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29626 + ... + 38985.

Almost surely, 2^321099480 is an apocalyptic number.

321099480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321099480 is an abundant number, since it is smaller than the sum of its proper divisors (802765080).

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

321099480 is a wasteful number, since it uses less digits than its factorization.

321099480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68641 (or 68634 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 321099480 is about 17919.2488681864. The cubic root of 321099480 is about 684.7728516747.

The spelling of 321099480 in words is "three hundred twenty-one million, ninety-nine thousand, four hundred eighty".