30231434040 has 32 divisors (see below), whose sum is σ = 90694302480. Its totient is φ = 8061715712.

The previous prime is 30231433993. The next prime is 30231434041. The reversal of 30231434040 is 4043413203.

It is a super-2 number, since 2×30231434040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30231434040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231434041) 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, 125964189 + ... + 125964428.

Almost surely, 2^30231434040 is an apocalyptic number.

30231434040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30231434040 is an abundant number, since it is smaller than the sum of its proper divisors (60462868440).

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

30231434040 is a wasteful number, since it uses less digits than its factorization.

30231434040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251928631 (or 251928627 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30231434040 its reverse (4043413203), we get a palindrome (34274847243).

The spelling of 30231434040 in words is "thirty billion, two hundred thirty-one million, four hundred thirty-four thousand, forty".