30212433240 has 64 divisors (see below), whose sum is σ = 98877058560. Its totient is φ = 7324225920.

The previous prime is 30212433239. The next prime is 30212433271. The reversal of 30212433240 is 4233421203.

It is a super-2 number, since 2×30212433240² (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 30212433240.

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, 11442784 + ... + 11445423.

It is an arithmetic number, because the mean of its divisors is an integer number (1544954040).

Almost surely, 2^30212433240 is an apocalyptic number.

30212433240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30212433240 is an abundant number, since it is smaller than the sum of its proper divisors (68664625320).

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

30212433240 is a wasteful number, since it uses less digits than its factorization.

30212433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22888232 (or 22888228 counting only the distinct ones).

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

Adding to 30212433240 its reverse (4233421203), we get a palindrome (34445854443).

The spelling of 30212433240 in words is "thirty billion, two hundred twelve million, four hundred thirty-three thousand, two hundred forty".