30455516440 has 16 divisors (see below), whose sum is σ = 68524912080. Its totient is φ = 12182206560.

The previous prime is 30455516407. The next prime is 30455516453. The reversal of 30455516440 is 4461555403.

It is a super-2 number, since 2×30455516440² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30455516440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380693916 + ... + 380693995.

It is an arithmetic number, because the mean of its divisors is an integer number (4282807005).

Almost surely, 2^30455516440 is an apocalyptic number.

It is an amenable number.

30455516440 is an abundant number, since it is smaller than the sum of its proper divisors (38069395640).

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

30455516440 is a wasteful number, since it uses less digits than its factorization.

30455516440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761387922 (or 761387918 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 30455516440 in words is "thirty billion, four hundred fifty-five million, five hundred sixteen thousand, four hundred forty".