403231224340 has 144 divisors (see below), whose sum is σ = 1008407957760. Its totient is φ = 135003214080.

The previous prime is 403231224337. The next prime is 403231224343. The reversal of 403231224340 is 43422132304.

It is an interprime number because it is at equal distance from previous prime (403231224337) and next prime (403231224343).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 403231224299 and 403231224308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403231224343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8285157 + ... + 8333683.

It is an arithmetic number, because the mean of its divisors is an integer number (7002833040).

Almost surely, 2^403231224340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403231224340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504203978880).

403231224340 is an abundant number, since it is smaller than the sum of its proper divisors (605176733420).

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

403231224340 is a wasteful number, since it uses less digits than its factorization.

403231224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48750 (or 48741 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 403231224340 its reverse (43422132304), we get a palindrome (446653356644).

The spelling of 403231224340 in words is "four hundred three billion, two hundred thirty-one million, two hundred twenty-four thousand, three hundred forty".