322630990 has 16 divisors (see below), whose sum is σ = 633530160. Its totient is φ = 117320320.

The previous prime is 322630969. The next prime is 322630999. The reversal of 322630990 is 99036223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322630999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466395 + ... + 1466614.

It is an arithmetic number, because the mean of its divisors is an integer number (39595635).

Almost surely, 2^322630990 is an apocalyptic number.

322630990 is a deficient number, since it is larger than the sum of its proper divisors (310899170).

322630990 is a wasteful number, since it uses less digits than its factorization.

322630990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933027.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 322630990 is about 17961.9316889916. The cubic root of 322630990 is about 685.8598185856.

The spelling of 322630990 in words is "three hundred twenty-two million, six hundred thirty thousand, nine hundred ninety".