33530422440 has 64 divisors (see below), whose sum is σ = 102489235200. Its totient is φ = 8772737792.

The previous prime is 33530422423. The next prime is 33530422459. The reversal of 33530422440 is 4422403533.

It is a super-2 number, since 2×33530422440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 33530422398 and 33530422407.

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, 2629680 + ... + 2642399.

It is an arithmetic number, because the mean of its divisors is an integer number (1601394300).

Almost surely, 2^33530422440 is an apocalyptic number.

33530422440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33530422440 is an abundant number, since it is smaller than the sum of its proper divisors (68958812760).

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

33530422440 is a wasteful number, since it uses less digits than its factorization.

33530422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272146 (or 5272142 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 33530422440 its reverse (4422403533), we get a palindrome (37952825973).

The spelling of 33530422440 in words is "thirty-three billion, five hundred thirty million, four hundred twenty-two thousand, four hundred forty".