240321132 has 18 divisors (see below), whose sum is σ = 607478508. Its totient is φ = 80107032.

The previous prime is 240321127. The next prime is 240321167. The reversal of 240321132 is 231123042.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×240321132² = 115508492971522848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3337758 + ... + 3337829.

It is an arithmetic number, because the mean of its divisors is an integer number (33748806).

Almost surely, 2^240321132 is an apocalyptic number.

It is an amenable number.

240321132 is an abundant number, since it is smaller than the sum of its proper divisors (367157376).

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

240321132 is a wasteful number, since it uses less digits than its factorization.

240321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675597 (or 6675592 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 240321132 is about 15502.2944108284. The cubic root of 240321132 is about 621.7235531547.

Adding to 240321132 its reverse (231123042), we get a palindrome (471444174).

The spelling of 240321132 in words is "two hundred forty million, three hundred twenty-one thousand, one hundred thirty-two".