322020345 has 16 divisors (see below), whose sum is σ = 518518080. Its totient is φ = 170649024.

The previous prime is 322020331. The next prime is 322020371. The reversal of 322020345 is 543020223.

It is not a de Polignac number, because 322020345 - 2⁹ = 322019833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66015 + ... + 70724.

It is an arithmetic number, because the mean of its divisors is an integer number (32407380).

Almost surely, 2^322020345 is an apocalyptic number.

It is an amenable number.

322020345 is a deficient number, since it is larger than the sum of its proper divisors (196497735).

322020345 is a wasteful number, since it uses less digits than its factorization.

322020345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136904.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 322020345 is about 17944.9253272339. The cubic root of 322020345 is about 685.4268354023.

Adding to 322020345 its reverse (543020223), we get a palindrome (865040568).

The spelling of 322020345 in words is "three hundred twenty-two million, twenty thousand, three hundred forty-five".