3257889888 has 48 divisors (see below), whose sum is σ = 9329414976. Its totient is φ = 987239040.

The previous prime is 3257889871. The next prime is 3257889937. The reversal of 3257889888 is 8889887523.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3257889888² = 21227693044665305088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541506 + ... + 1543617.

It is an arithmetic number, because the mean of its divisors is an integer number (194362812).

Almost surely, 2^3257889888 is an apocalyptic number.

It is an amenable number.

3257889888 is an abundant number, since it is smaller than the sum of its proper divisors (6071525088).

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

3257889888 is a wasteful number, since it uses less digits than its factorization.

3257889888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085147 (or 3085139 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 66.

The square root of 3257889888 is about 57077.9282034658. The cubic root of 3257889888 is about 1482.4457200062.

The spelling of 3257889888 in words is "three billion, two hundred fifty-seven million, eight hundred eighty-nine thousand, eight hundred eighty-eight".