3857549520 has 80 divisors (see below), whose sum is σ = 13045540032. Its totient is φ = 935162880.

The previous prime is 3857549519. The next prime is 3857549551. The reversal of 3857549520 is 259457583.

3857549520 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3857549520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727957 + ... + 733236.

Almost surely, 2^3857549520 is an apocalyptic number.

3857549520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3857549520 is an abundant number, since it is smaller than the sum of its proper divisors (9187990512).

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

3857549520 is a wasteful number, since it uses less digits than its factorization.

3857549520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461220 (or 1461214 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The square root of 3857549520 is about 62109.1742015622. The cubic root of 3857549520 is about 1568.3289887397.

The spelling of 3857549520 in words is "three billion, eight hundred fifty-seven million, five hundred forty-nine thousand, five hundred twenty".