3913842420 has 54 divisors (see below), whose sum is σ = 11874535218. Its totient is φ = 1043467488.

The previous prime is 3913842377. The next prime is 3913842437. The reversal of 3913842420 is 242483193.

3913842420 is a `hidden beast` number, since 39 + 1 + 384 + 242 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3131073936 + 782768484 = 55956^2 + 27978^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 837009 + ... + 841671.

Almost surely, 2^3913842420 is an apocalyptic number.

3913842420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3913842420 is an abundant number, since it is smaller than the sum of its proper divisors (7960692798).

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

3913842420 is an equidigital number, since it uses as much as digits as its factorization.

3913842420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9341 (or 4673 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 3913842420 is about 62560.7098744891. The cubic root of 3913842420 is about 1575.9210093154.

The spelling of 3913842420 in words is "three billion, nine hundred thirteen million, eight hundred forty-two thousand, four hundred twenty".