33130245440 has 56 divisors (see below), whose sum is σ = 78944358240. Its totient is φ = 13243202048.

The previous prime is 33130245437. The next prime is 33130245493. The reversal of 33130245440 is 4454203133.

It is a super-2 number, since 2×33130245440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453371 + ... + 521349.

Almost surely, 2^33130245440 is an apocalyptic number.

It is an amenable number.

33130245440 is an abundant number, since it is smaller than the sum of its proper divisors (45814112800).

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

33130245440 is a wasteful number, since it uses less digits than its factorization.

33130245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69519 (or 69509 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 33130245440 its reverse (4454203133), we get a palindrome (37584448573).

The spelling of 33130245440 in words is "thirty-three billion, one hundred thirty million, two hundred forty-five thousand, four hundred forty".