403031232240 has 320 divisors, whose sum is σ = 1552952604672. Its totient is φ = 84192768000.

The previous prime is 403031232239. The next prime is 403031232281. The reversal of 403031232240 is 42232130304.

403031232240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 403031232240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2114485 + ... + 2297195.

Almost surely, 2^403031232240 is an apocalyptic number.

403031232240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403031232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776476302336).

403031232240 is an abundant number, since it is smaller than the sum of its proper divisors (1149921372432).

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

403031232240 is a wasteful number, since it uses less digits than its factorization.

403031232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182848 (or 182842 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 403031232240 its reverse (42232130304), we get a palindrome (445263362544).

The spelling of 403031232240 in words is "four hundred three billion, thirty-one million, two hundred thirty-two thousand, two hundred forty".