403572 has 36 divisors (see below), whose sum is σ = 1024800. Its totient is φ = 123552.

The previous prime is 403567. The next prime is 403577. The reversal of 403572 is 275304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (403567) and next prime (403577).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403577) by changing a digit.

403572 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1929 + ... + 2127.

2⁴⁰³⁵⁷² 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 403572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512400).

403572 is an abundant number, since it is smaller than the sum of its proper divisors (621228).

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

403572 is a wasteful number, since it uses less digits than its factorization.

403572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 403572 is about 635.2731695893. The cubic root of 403572 is about 73.8993030172.

Adding to 403572 its reverse (275304), we get a palindrome (678876).

The spelling of 403572 in words is "four hundred three thousand, five hundred seventy-two".