403500132 has 144 divisors (see below), whose sum is σ = 1245404160. Its totient is φ = 107642304.

The previous prime is 403500073. The next prime is 403500137. The reversal of 403500132 is 231005304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (403500137) 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, 248419 + ... + 250037.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^403500132 is an apocalyptic number.

403500132 is a gapful number since it is divisible by the number (42) 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 403500132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622702080).

403500132 is an abundant number, since it is smaller than the sum of its proper divisors (841904028).

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

403500132 is a wasteful number, since it uses less digits than its factorization.

403500132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 403500132 is about 20087.3127122570. The cubic root of 403500132 is about 738.9491610040.

Adding to 403500132 its reverse (231005304), we get a palindrome (634505436).

The spelling of 403500132 in words is "four hundred three million, five hundred thousand, one hundred thirty-two".