33444321040 has 40 divisors (see below), whose sum is σ = 83739437208. Its totient is φ = 12348672000.

The previous prime is 33444321023. The next prime is 33444321047. The reversal of 33444321040 is 4012344433.

It can be written as a sum of positive squares in 4 ways, for example, as 397444096 + 33046876944 = 19936^2 + 181788^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33444321040² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33444321047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16077961 + ... + 16080040.

Almost surely, 2^33444321040 is an apocalyptic number.

It is an amenable number.

33444321040 is an abundant number, since it is smaller than the sum of its proper divisors (50295116168).

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

33444321040 is a wasteful number, since it uses less digits than its factorization.

33444321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32158027 (or 32158021 counting only the distinct ones).

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

Adding to 33444321040 its reverse (4012344433), we get a palindrome (37456665473).

The spelling of 33444321040 in words is "thirty-three billion, four hundred forty-four million, three hundred twenty-one thousand, forty".