4348346640 has 80 divisors (see below), whose sum is σ = 14705326656. Its totient is φ = 1054144000.

The previous prime is 4348346633. The next prime is 4348346659. The reversal of 4348346640 is 466438434.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4348346592 and 4348346601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820911 + ... + 826190.

Almost surely, 2^4348346640 is an apocalyptic number.

4348346640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4348346640 is an abundant number, since it is smaller than the sum of its proper divisors (10356980016).

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

4348346640 is a wasteful number, since it uses less digits than its factorization.

4348346640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647128 (or 1647122 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The square root of 4348346640 is about 65941.9945103270. The cubic root of 4348346640 is about 1632.2050576152.

The spelling of 4348346640 in words is "four billion, three hundred forty-eight million, three hundred forty-six thousand, six hundred forty".