403232352240 has 40 divisors (see below), whose sum is σ = 1250020292688. Its totient is φ = 107528627200.

The previous prime is 403232352151. The next prime is 403232352247. The reversal of 403232352240 is 42253232304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 403232352198 and 403232352207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403232352247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840067161 + ... + 840067640.

Almost surely, 2^403232352240 is an apocalyptic number.

403232352240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403232352240 is an abundant number, since it is smaller than the sum of its proper divisors (846787940448).

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

403232352240 is a wasteful number, since it uses less digits than its factorization.

403232352240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680134817 (or 1680134811 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 403232352240 its reverse (42253232304), we get a palindrome (445485584544).

The spelling of 403232352240 in words is "four hundred three billion, two hundred thirty-two million, three hundred fifty-two thousand, two hundred forty".