33409894500 has 192 divisors, whose sum is σ = 113789894400. Its totient is φ = 8440329600.

The previous prime is 33409894489. The next prime is 33409894549. The reversal of 33409894500 is 549890433.

It is a happy number.

It is a super-2 number, since 2×33409894500² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191374 + ... + 321626.

It is an arithmetic number, because the mean of its divisors is an integer number (592655700).

Almost surely, 2^33409894500 is an apocalyptic number.

33409894500 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 33409894500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56894947200).

33409894500 is an abundant number, since it is smaller than the sum of its proper divisors (80379999900).

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

33409894500 is a wasteful number, since it uses less digits than its factorization.

33409894500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130300 (or 130282 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 33409894500 in words is "thirty-three billion, four hundred nine million, eight hundred ninety-four thousand, five hundred".