30451046236440 has 32 divisors (see below), whose sum is σ = 91353138709680. Its totient is φ = 8120278996352.

The previous prime is 30451046236433. The next prime is 30451046236489. The reversal of 30451046236440 is 4463264015403.

It is a junction number, because it is equal to n+sod(n) for n = 30451046236392 and 30451046236401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126879359199 + ... + 126879359438.

Almost surely, 2^{30451046236440} is an apocalyptic number.

30451046236440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30451046236440 is an abundant number, since it is smaller than the sum of its proper divisors (60902092473240).

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

30451046236440 is a wasteful number, since it uses less digits than its factorization.

30451046236440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253758718651 (or 253758718647 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 30451046236440 in words is "thirty trillion, four hundred fifty-one billion, forty-six million, two hundred thirty-six thousand, four hundred forty".