30440233440 has 144 divisors (see below), whose sum is σ = 105638223600. Its totient is φ = 7979790336.

The previous prime is 30440233429. The next prime is 30440233451. The reversal of 30440233440 is 4433204403.

It is an interprime number because it is at equal distance from previous prime (30440233429) and next prime (30440233451).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94185 + ... + 264104.

It is an arithmetic number, because the mean of its divisors is an integer number (733598775).

Almost surely, 2^30440233440 is an apocalyptic number.

30440233440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30440233440 is an abundant number, since it is smaller than the sum of its proper divisors (75197990160).

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

30440233440 is a wasteful number, since it uses less digits than its factorization.

30440233440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358369 (or 358358 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 30440233440 its reverse (4433204403), we get a palindrome (34873437843).

The spelling of 30440233440 in words is "thirty billion, four hundred forty million, two hundred thirty-three thousand, four hundred forty".