403402132320 has 288 divisors, whose sum is σ = 1403868068064. Its totient is φ = 97295278080.

The previous prime is 403402132313. The next prime is 403402132327. The reversal of 403402132320 is 23231204304.

It is an interprime number because it is at equal distance from previous prime (403402132313) and next prime (403402132327).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403402132327) 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, 11424132 + ... + 11459388.

It is an arithmetic number, because the mean of its divisors is an integer number (4874541903).

Almost surely, 2^403402132320 is an apocalyptic number.

403402132320 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 403402132320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701934034032).

403402132320 is an abundant number, since it is smaller than the sum of its proper divisors (1000465935744).

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

403402132320 is a wasteful number, since it uses less digits than its factorization.

403402132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35494 (or 35475 counting only the distinct ones).

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

Adding to 403402132320 its reverse (23231204304), we get a palindrome (426633336624).

The spelling of 403402132320 in words is "four hundred three billion, four hundred two million, one hundred thirty-two thousand, three hundred twenty".