322122240 has 480 divisors, whose sum is σ = 1286917632. Its totient is φ = 73728000.

The previous prime is 322122221. The next prime is 322122247. The reversal of 322122240 is 42221223.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (322122247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7856620 + ... + 7856660.

Almost surely, 2^322122240 is an apocalyptic number.

322122240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643458816).

322122240 is an abundant number, since it is smaller than the sum of its proper divisors (964795392).

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

322122240 is a wasteful number, since it uses less digits than its factorization.

322122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 322122240 is about 17947.7642061623. The cubic root of 322122240 is about 685.4991229697.

Adding to 322122240 its reverse (42221223), we get a palindrome (364343463).

The spelling of 322122240 in words is "three hundred twenty-two million, one hundred twenty-two thousand, two hundred forty".