30432233440 has 96 divisors (see below), whose sum is σ = 85000466880. Its totient is φ = 10074107904.

The previous prime is 30432233393. The next prime is 30432233449. The reversal of 30432233440 is 4433223403.

It is a super-2 number, since 2×30432233440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 30432233399 and 30432233408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30432233449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435997 + ... + 500956.

It is an arithmetic number, because the mean of its divisors is an integer number (885421530).

Almost surely, 2^30432233440 is an apocalyptic number.

It is an amenable number.

30432233440 is an abundant number, since it is smaller than the sum of its proper divisors (54568233440).

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

30432233440 is a wasteful number, since it uses less digits than its factorization.

30432233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937004 (or 936996 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 30432233440 its reverse (4433223403), we get a palindrome (34865456843).

The spelling of 30432233440 in words is "thirty billion, four hundred thirty-two million, two hundred thirty-three thousand, four hundred forty".