403402272 has 192 divisors, whose sum is σ = 1326415104. Its totient is φ = 104509440.

The previous prime is 403402261. The next prime is 403402273. The reversal of 403402272 is 272204304.

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

It is not an unprimeable number, because it can be changed into a prime (403402273) 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 31 ways as a sum of consecutive naturals, for example, 532518 + ... + 533274.

It is an arithmetic number, because the mean of its divisors is an integer number (6908412).

Almost surely, 2^403402272 is an apocalyptic number.

403402272 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 403402272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663207552).

403402272 is an abundant number, since it is smaller than the sum of its proper divisors (923012832).

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

403402272 is a wasteful number, since it uses less digits than its factorization.

403402272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 403402272 is about 20084.8766986507. The cubic root of 403402272 is about 738.8894176021.

Adding to 403402272 its reverse (272204304), we get a palindrome (675606576).

The spelling of 403402272 in words is "four hundred three million, four hundred two thousand, two hundred seventy-two".