30543440742 has 64 divisors (see below), whose sum is σ = 70528389120. Its totient is φ = 9787392000.

The previous prime is 30543440737. The next prime is 30543440843. The reversal of 30543440742 is 24704434503.

30543440742 is a `hidden beast` number, since 3 + 0 + 543 + 4 + 40 + 74 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30543440697 and 30543440706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192358 + ... + 313190.

It is an arithmetic number, because the mean of its divisors is an integer number (1102006080).

Almost surely, 2^30543440742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30543440742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35264194560).

30543440742 is an abundant number, since it is smaller than the sum of its proper divisors (39984948378).

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

30543440742 is a wasteful number, since it uses less digits than its factorization.

30543440742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121026 (or 121020 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 36.

The spelling of 30543440742 in words is "thirty billion, five hundred forty-three million, four hundred forty thousand, seven hundred forty-two".