322740018 has 32 divisors (see below), whose sum is σ = 718273920. Its totient is φ = 107418960.

The previous prime is 322740017. The next prime is 322740031. The reversal of 322740018 is 810047223.

It is a super-2 number, since 2×322740018² = 208322238437280648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 322739973 and 322740000.

It is not an unprimeable number, because it can be changed into a prime (322740017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35148 + ... + 43368.

It is an arithmetic number, because the mean of its divisors is an integer number (22446060).

Almost surely, 2^322740018 is an apocalyptic number.

322740018 is an abundant number, since it is smaller than the sum of its proper divisors (395533902).

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

322740018 is a wasteful number, since it uses less digits than its factorization.

322740018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 322740018 is about 17964.9664068709. The cubic root of 322740018 is about 685.9370683486.

The spelling of 322740018 in words is "three hundred twenty-two million, seven hundred forty thousand, eighteen".