400003112002432 has 16 divisors (see below), whose sum is σ = 796881199692600. Its totient is φ = 200001556001152.

The previous prime is 400003112002397. The next prime is 400003112002433. The reversal of 400003112002432 is 234200211300004.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×400003112002432² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400003112002433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562512156132 + ... + 1562512156387.

Almost surely, 2^{400003112002432} is an apocalyptic number.

It is an amenable number.

400003112002432 is a deficient number, since it is larger than the sum of its proper divisors (396878087690168).

400003112002432 is an equidigital number, since it uses as much as digits as its factorization.

400003112002432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125024312533 (or 3125024312521 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 400003112002432 its reverse (234200211300004), we get a palindrome (634203323302436).

The spelling of 400003112002432 in words is "four hundred trillion, three billion, one hundred twelve million, two thousand, four hundred thirty-two".