1641831488 has 56 divisors (see below), whose sum is σ = 3650309184. Its totient is φ = 726105600.

The previous prime is 1641831481. The next prime is 1641831533. The reversal of 1641831488 is 8841381461.

It is a super-2 number, since 2×1641831488² = 5391221269976588288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1641831481) by changing a digit.

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, 5468 + ... + 57563.

Almost surely, 2^1641831488 is an apocalyptic number.

It is an amenable number.

1641831488 is an abundant number, since it is smaller than the sum of its proper divisors (2008477696).

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

1641831488 is a wasteful number, since it uses less digits than its factorization.

1641831488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63091 (or 63081 counting only the distinct ones).

The product of its digits is 147456, while the sum is 44.

The square root of 1641831488 is about 40519.5198392084. The cubic root of 1641831488 is about 1179.7125336324.

The spelling of 1641831488 in words is "one billion, six hundred forty-one million, eight hundred thirty-one thousand, four hundred eighty-eight".