1232305240 has 32 divisors (see below), whose sum is σ = 2775682080. Its totient is φ = 492389632.

The previous prime is 1232305219. The next prime is 1232305259. The reversal of 1232305240 is 425032321.

It is a congruent number.

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, 21957 + ... + 54283.

It is an arithmetic number, because the mean of its divisors is an integer number (86740065).

Almost surely, 2^1232305240 is an apocalyptic number.

1232305240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232305240 is an abundant number, since it is smaller than the sum of its proper divisors (1543376840).

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

1232305240 is a wasteful number, since it uses less digits than its factorization.

1232305240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33291 (or 33287 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1232305240 is about 35104.2054460716. The cubic root of 1232305240 is about 1072.1102094868.

Adding to 1232305240 its reverse (425032321), we get a palindrome (1657337561).

The spelling of 1232305240 in words is "one billion, two hundred thirty-two million, three hundred five thousand, two hundred forty".