326496690 has 128 divisors (see below), whose sum is σ = 944939520. Its totient is φ = 79743744.

The previous prime is 326496659. The next prime is 326496691. The reversal of 326496690 is 96694623.

It is a super-2 number, since 2×326496690² = 213200177161912200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (326496691) 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 63 ways as a sum of consecutive naturals, for example, 585892 + ... + 586448.

It is an arithmetic number, because the mean of its divisors is an integer number (7382340).

Almost surely, 2^326496690 is an apocalyptic number.

326496690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 326496690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472469760).

326496690 is an abundant number, since it is smaller than the sum of its proper divisors (618442830).

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

326496690 is a wasteful number, since it uses less digits than its factorization.

326496690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 326496690 is about 18069.2194076003. The cubic root of 326496690 is about 688.5882287340.

The spelling of 326496690 in words is "three hundred twenty-six million, four hundred ninety-six thousand, six hundred ninety".