326466690 has 32 divisors (see below), whose sum is σ = 854750016. Its totient is φ = 79143360.

The previous prime is 326466689. The next prime is 326466703. The reversal of 326466690 is 96664623.

It is a super-2 number, since 2×326466690² = 213160999359112200, which contains 22 as substring.

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, 494317 + ... + 494976.

It is an arithmetic number, because the mean of its divisors is an integer number (26710938).

Almost surely, 2^326466690 is an apocalyptic number.

326466690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

326466690 is an abundant number, since it is smaller than the sum of its proper divisors (528283326).

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

326466690 is a wasteful number, since it uses less digits than its factorization.

326466690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989314.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 326466690 is about 18068.3892475229. The cubic root of 326466690 is about 688.5671378825.

The spelling of 326466690 in words is "three hundred twenty-six million, four hundred sixty-six thousand, six hundred ninety".