30531446740 has 24 divisors (see below), whose sum is σ = 64127187432. Its totient is φ = 12210455040.

The previous prime is 30531446689. The next prime is 30531446747. The reversal of 30531446740 is 4764413503.

It can be written as a sum of positive squares in 4 ways, for example, as 10502970256 + 20028476484 = 102484^2 + 141522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30531446740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30531446747) 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, 12169 + ... + 247408.

It is an arithmetic number, because the mean of its divisors is an integer number (2671966143).

Almost surely, 2^30531446740 is an apocalyptic number.

It is an amenable number.

30531446740 is an abundant number, since it is smaller than the sum of its proper divisors (33595740692).

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

30531446740 is a wasteful number, since it uses less digits than its factorization.

30531446740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265467 (or 265465 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 30531446740 in words is "thirty billion, five hundred thirty-one million, four hundred forty-six thousand, seven hundred forty".