403520832 has 448 divisors, whose sum is σ = 1474744320. Its totient is φ = 106444800.

The previous prime is 403520827. The next prime is 403520839. The reversal of 403520832 is 238025304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 403520796 and 403520805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403520839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5683357 + ... + 5683427.

It is an arithmetic number, because the mean of its divisors is an integer number (3291840).

Almost surely, 2^403520832 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 403520832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737372160).

403520832 is an abundant number, since it is smaller than the sum of its proper divisors (1071223488).

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

403520832 is a wasteful number, since it uses less digits than its factorization.

403520832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 403520832 is about 20087.8279562525. The cubic root of 403520832 is about 738.9617970892.

The spelling of 403520832 in words is "four hundred three million, five hundred twenty thousand, eight hundred thirty-two".