326731072 has 28 divisors (see below), whose sum is σ = 669275776. Its totient is φ = 158094720.

The previous prime is 326731057. The next prime is 326731079. The reversal of 326731072 is 270137623.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326731079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80358 + ... + 84325.

Almost surely, 2^326731072 is an apocalyptic number.

326731072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

326731072 is an abundant number, since it is smaller than the sum of its proper divisors (342544704).

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

326731072 is a wasteful number, since it uses less digits than its factorization.

326731072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164726 (or 164716 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 326731072 is about 18075.7039143708. The cubic root of 326731072 is about 688.7529614729.

Adding to 326731072 its reverse (270137623), we get a palindrome (596868695).

The spelling of 326731072 in words is "three hundred twenty-six million, seven hundred thirty-one thousand, seventy-two".