3455939640 has 96 divisors (see below), whose sum is σ = 10942350480. Its totient is φ = 873068544.

The previous prime is 3455939629. The next prime is 3455939693. The reversal of 3455939640 is 469395543.

It is a self number, because there is not a number n which added to its sum of digits gives 3455939640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3432 + ... + 83208.

Almost surely, 2^3455939640 is an apocalyptic number.

3455939640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3455939640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5471175240).

3455939640 is an abundant number, since it is smaller than the sum of its proper divisors (7486410840).

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

3455939640 is a wasteful number, since it uses less digits than its factorization.

3455939640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79829 (or 79806 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The square root of 3455939640 is about 58787.2404523294. The cubic root of 3455939640 is about 1511.8964578742.

The spelling of 3455939640 in words is "three billion, four hundred fifty-five million, nine hundred thirty-nine thousand, six hundred forty".