33400144432 has 20 divisors (see below), whose sum is σ = 64715616616. Its totient is φ = 16699340160.

The previous prime is 33400144423. The next prime is 33400144433. The reversal of 33400144432 is 23444100433.

It is a super-2 number, since 2×33400144432² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33400144432.

It is not an unprimeable number, because it can be changed into a prime (33400144433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669043 + ... + 717229.

Almost surely, 2^33400144432 is an apocalyptic number.

It is an amenable number.

33400144432 is a deficient number, since it is larger than the sum of its proper divisors (31315472184).

33400144432 is a wasteful number, since it uses less digits than its factorization.

33400144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91516 (or 91510 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 33400144432 its reverse (23444100433), we get a palindrome (56844244865).

The spelling of 33400144432 in words is "thirty-three billion, four hundred million, one hundred forty-four thousand, four hundred thirty-two".