30140031420 has 48 divisors (see below), whose sum is σ = 93768988320. Its totient is φ = 8037341568.

The previous prime is 30140031413. The next prime is 30140031421. The reversal of 30140031420 is 2413004103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30140031393 and 30140031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140031421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27906897 + ... + 27907976.

It is an arithmetic number, because the mean of its divisors is an integer number (1953520590).

Almost surely, 2^30140031420 is an apocalyptic number.

30140031420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30140031420 is an abundant number, since it is smaller than the sum of its proper divisors (63628956900).

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

30140031420 is a wasteful number, since it uses less digits than its factorization.

30140031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55814891 (or 55814883 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30140031420 its reverse (2413004103), we get a palindrome (32553035523).

The spelling of 30140031420 in words is "thirty billion, one hundred forty million, thirty-one thousand, four hundred twenty".