33500223240 has 64 divisors (see below), whose sum is σ = 109637098560. Its totient is φ = 8121265920.

The previous prime is 33500223227. The next prime is 33500223287. The reversal of 33500223240 is 4232200533.

It is a super-2 number, since 2×33500223240² (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 self number, because there is not a number n which added to its sum of digits gives 33500223240.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12688159 + ... + 12690798.

It is an arithmetic number, because the mean of its divisors is an integer number (1713079665).

Almost surely, 2^33500223240 is an apocalyptic number.

33500223240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33500223240 is an abundant number, since it is smaller than the sum of its proper divisors (76136875320).

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

33500223240 is a wasteful number, since it uses less digits than its factorization.

33500223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25378982 (or 25378978 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 33500223240 its reverse (4232200533), we get a palindrome (37732423773).

The spelling of 33500223240 in words is "thirty-three billion, five hundred million, two hundred twenty-three thousand, two hundred forty".