30421702607440 has 20 divisors (see below), whose sum is σ = 70730458562484. Its totient is φ = 12168681042944.

The previous prime is 30421702607419. The next prime is 30421702607453. The reversal of 30421702607440 is 4470620712403.

It can be written as a sum of positive squares in 2 ways, for example, as 8919970703424 + 21501731904016 = 2986632^2 + 4636996^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 30421702607393 and 30421702607402.

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, 190135641217 + ... + 190135641376.

Almost surely, 2^{30421702607440} is an apocalyptic number.

It is an amenable number.

30421702607440 is an abundant number, since it is smaller than the sum of its proper divisors (40308755955044).

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

30421702607440 is a wasteful number, since it uses less digits than its factorization.

30421702607440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380271282606 (or 380271282600 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 30421702607440 in words is "thirty trillion, four hundred twenty-one billion, seven hundred two million, six hundred seven thousand, four hundred forty".