3925840620 has 96 divisors (see below), whose sum is σ = 12219863040. Its totient is φ = 935182080.

The previous prime is 3925840601. The next prime is 3925840631. The reversal of 3925840620 is 260485293.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57000 + ... + 105359.

It is an arithmetic number, because the mean of its divisors is an integer number (127290240).

Almost surely, 2^3925840620 is an apocalyptic number.

3925840620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3925840620 is an abundant number, since it is smaller than the sum of its proper divisors (8294022420).

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

3925840620 is a wasteful number, since it uses less digits than its factorization.

3925840620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162415 (or 162413 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 3925840620 is about 62656.5289495037. The cubic root of 3925840620 is about 1577.5297375772.

The spelling of 3925840620 in words is "three billion, nine hundred twenty-five million, eight hundred forty thousand, six hundred twenty".