3899720424 has 32 divisors (see below), whose sum is σ = 9759024000. Its totient is φ = 1298610432.

The previous prime is 3899720411. The next prime is 3899720437. The reversal of 3899720424 is 4240279983.

It is an interprime number because it is at equal distance from previous prime (3899720411) and next prime (3899720437).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56304 + ... + 104735.

It is an arithmetic number, because the mean of its divisors is an integer number (304969500).

Almost surely, 2^3899720424 is an apocalyptic number.

It is an amenable number.

3899720424 is an abundant number, since it is smaller than the sum of its proper divisors (5859303576).

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

3899720424 is a wasteful number, since it uses less digits than its factorization.

3899720424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162057 (or 162053 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 3899720424 is about 62447.7415444306. The cubic root of 3899720424 is about 1574.0233029416.

The spelling of 3899720424 in words is "three billion, eight hundred ninety-nine million, seven hundred twenty thousand, four hundred twenty-four".