403252235440 has 40 divisors (see below), whose sum is σ = 937645509168. Its totient is φ = 161286432000.

The previous prime is 403252235431. The next prime is 403252235501. The reversal of 403252235440 is 44532252304.

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

It is a super-2 number, since 2×403252235440² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 403252235396 and 403252235405.

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, 695190 + ... + 1135690.

Almost surely, 2^403252235440 is an apocalyptic number.

403252235440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403252235440 is an abundant number, since it is smaller than the sum of its proper divisors (534393273728).

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

403252235440 is a wasteful number, since it uses less digits than its factorization.

403252235440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451957 (or 451951 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 403252235440 its reverse (44532252304), we get a palindrome (447784487744).

The spelling of 403252235440 in words is "four hundred three billion, two hundred fifty-two million, two hundred thirty-five thousand, four hundred forty".