3996986420 has 48 divisors (see below), whose sum is σ = 9852044160. Its totient is φ = 1333355904.

The previous prime is 3996986419. The next prime is 3996986473. The reversal of 3996986420 is 246896993.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380630 + ... + 390989.

It is an arithmetic number, because the mean of its divisors is an integer number (205250920).

Almost surely, 2^3996986420 is an apocalyptic number.

It is an amenable number.

3996986420 is an abundant number, since it is smaller than the sum of its proper divisors (5855057740).

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

3996986420 is a wasteful number, since it uses less digits than its factorization.

3996986420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771672 (or 771670 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 56.

The square root of 3996986420 is about 63221.7242725948. The cubic root of 3996986420 is about 1587.0023051416.

The spelling of 3996986420 in words is "three billion, nine hundred ninety-six million, nine hundred eighty-six thousand, four hundred twenty".