3493756420 has 144 divisors (see below), whose sum is σ = 9515326464. Its totient is φ = 1053676800.

The previous prime is 3493756417. The next prime is 3493756459. The reversal of 3493756420 is 246573943.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521814 + ... + 528466.

It is an arithmetic number, because the mean of its divisors is an integer number (66078656).

Almost surely, 2^3493756420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3493756420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4757663232).

3493756420 is an abundant number, since it is smaller than the sum of its proper divisors (6021570044).

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

3493756420 is a wasteful number, since it uses less digits than its factorization.

3493756420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722 (or 6709 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 3493756420 is about 59108.0063950731. The cubic root of 3493756420 is about 1517.3911301761.

The spelling of 3493756420 in words is "three billion, four hundred ninety-three million, seven hundred fifty-six thousand, four hundred twenty".