326234640 has 40 divisors (see below), whose sum is σ = 1011328128. Its totient is φ = 86995840.

The previous prime is 326234633. The next prime is 326234653. The reversal of 326234640 is 46432623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 326234598 and 326234607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679416 + ... + 679895.

Almost surely, 2^326234640 is an apocalyptic number.

326234640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326234640 is an abundant number, since it is smaller than the sum of its proper divisors (685093488).

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

326234640 is a wasteful number, since it uses less digits than its factorization.

326234640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359327 (or 1359321 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 326234640 is about 18061.9666703269. The cubic root of 326234640 is about 688.4039564804.

The spelling of 326234640 in words is "three hundred twenty-six million, two hundred thirty-four thousand, six hundred forty".