1601731488 has 96 divisors (see below), whose sum is σ = 4812756480. Its totient is φ = 456917760.

The previous prime is 1601731463. The next prime is 1601731507. The reversal of 1601731488 is 8841371061.

It is a tau number, because it is divible by the number of its divisors (96).

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, 543523 + ... + 546461.

It is an arithmetic number, because the mean of its divisors is an integer number (50132880).

Almost surely, 2^1601731488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601731488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406378240).

1601731488 is an abundant number, since it is smaller than the sum of its proper divisors (3211024992).

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

1601731488 is a wasteful number, since it uses less digits than its factorization.

1601731488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3762 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1601731488 is about 40021.6377475985. The cubic root of 1601731488 is about 1170.0288516517.

The spelling of 1601731488 in words is "one billion, six hundred one million, seven hundred thirty-one thousand, four hundred eighty-eight".