403252113520 has 40 divisors (see below), whose sum is σ = 992711823984. Its totient is φ = 151812559872.

The previous prime is 403252113499. The next prime is 403252113533. The reversal of 403252113520 is 25311252304.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×403252113520² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148253094 + ... + 148255813.

Almost surely, 2^403252113520 is an apocalyptic number.

403252113520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403252113520 is an abundant number, since it is smaller than the sum of its proper divisors (589459710464).

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

403252113520 is a wasteful number, since it uses less digits than its factorization.

403252113520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296508937 (or 296508931 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 403252113520 its reverse (25311252304), we get a palindrome (428563365824).

The spelling of 403252113520 in words is "four hundred three billion, two hundred fifty-two million, one hundred thirteen thousand, five hundred twenty".