33400433400 has 192 divisors, whose sum is σ = 104562057600. Its totient is φ = 8819458560.

The previous prime is 33400433399. The next prime is 33400433413. The reversal of 33400433400 is 433400433.

It is a super-2 number, since 2×33400433400² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32971294 + ... + 32972306.

It is an arithmetic number, because the mean of its divisors is an integer number (544594050).

Almost surely, 2^33400433400 is an apocalyptic number.

33400433400 is a gapful number since it is divisible by the number (30) 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 33400433400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52281028800).

33400433400 is an abundant number, since it is smaller than the sum of its proper divisors (71161624200).

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

33400433400 is a wasteful number, since it uses less digits than its factorization.

33400433400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 33400433400 its reverse (433400433), we get a palindrome (33833833833).

The spelling of 33400433400 in words is "thirty-three billion, four hundred million, four hundred thirty-three thousand, four hundred".