30553433240 has 64 divisors (see below), whose sum is σ = 75737423520. Its totient is φ = 11000320000.

The previous prime is 30553433219. The next prime is 30553433297. The reversal of 30553433240 is 4233435503.

It is a super-2 number, since 2×30553433240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30553433197 and 30553433206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299321 + ... + 388200.

Almost surely, 2^30553433240 is an apocalyptic number.

It is an amenable number.

30553433240 is an abundant number, since it is smaller than the sum of its proper divisors (45183990280).

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

30553433240 is a wasteful number, since it uses less digits than its factorization.

30553433240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687644 (or 687640 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 32.

Adding to 30553433240 its reverse (4233435503), we get a palindrome (34786868743).

The spelling of 30553433240 in words is "thirty billion, five hundred fifty-three million, four hundred thirty-three thousand, two hundred forty".