30405426740 has 24 divisors (see below), whose sum is σ = 68763042600. Its totient is φ = 11226619008.

The previous prime is 30405426719. The next prime is 30405426757. The reversal of 30405426740 is 4762450403.

It can be written as a sum of positive squares in 4 ways, for example, as 280964644 + 30124462096 = 16762^2 + 173564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30405426740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58471715 + ... + 58472234.

It is an arithmetic number, because the mean of its divisors is an integer number (2865126775).

Almost surely, 2^30405426740 is an apocalyptic number.

It is an amenable number.

30405426740 is an abundant number, since it is smaller than the sum of its proper divisors (38357615860).

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

30405426740 is a wasteful number, since it uses less digits than its factorization.

30405426740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116943971 (or 116943969 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 30405426740 in words is "thirty billion, four hundred five million, four hundred twenty-six thousand, seven hundred forty".