1232401324440 has 256 divisors, whose sum is σ = 4532420551680. Its totient is φ = 263791503360.

The previous prime is 1232401324403. The next prime is 1232401324471. The reversal of 1232401324440 is 444231042321.

It is a super-2 number, since 2×1232401324440² (a number of 25 digits) contains 22 as substring.

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 = 1232401324398 and 1232401324407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1166587 + ... + 1955946.

It is an arithmetic number, because the mean of its divisors is an integer number (17704767780).

Almost surely, 2^{1232401324440} is an apocalyptic number.

1232401324440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232401324440 is an abundant number, since it is smaller than the sum of its proper divisors (3300019227240).

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

1232401324440 is a wasteful number, since it uses less digits than its factorization.

1232401324440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122594 (or 3122590 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1232401324440 its reverse (444231042321), we get a palindrome (1676632366761).

The spelling of 1232401324440 in words is "one trillion, two hundred thirty-two billion, four hundred one million, three hundred twenty-four thousand, four hundred forty".