232542440 has 32 divisors (see below), whose sum is σ = 563469480. Its totient is φ = 85861632.

The previous prime is 232542437. The next prime is 232542481. The reversal of 232542440 is 44245232.

It is a happy number.

232542440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65254084 + 167288356 = 8078^2 + 12934^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223079 + ... + 224118.

Almost surely, 2^232542440 is an apocalyptic number.

232542440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232542440 is an abundant number, since it is smaller than the sum of its proper divisors (330927040).

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

232542440 is a wasteful number, since it uses less digits than its factorization.

232542440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447221 (or 447217 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 232542440 is about 15249.3422808985. The cubic root of 232542440 is about 614.9418853584.

Adding to 232542440 its reverse (44245232), we get a palindrome (276787672).

The spelling of 232542440 in words is "two hundred thirty-two million, five hundred forty-two thousand, four hundred forty".