1641607488 has 42 divisors (see below), whose sum is σ = 4705373114. Its totient is φ = 547202304.

The previous prime is 1641607483. The next prime is 1641607489. The reversal of 1641607488 is 8847061461.

1641607488 is a `hidden beast` number, since 1 + 6 + 4 + 160 + 7 + 488 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1407150144 + 234457344 = 37512^2 + 15312^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641607483) 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 5 ways as a sum of consecutive naturals, for example, 1424431 + ... + 1425582.

Almost surely, 2^1641607488 is an apocalyptic number.

1641607488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1641607488 is an abundant number, since it is smaller than the sum of its proper divisors (3063765626).

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

1641607488 is a wasteful number, since it uses less digits than its factorization.

1641607488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850031 (or 2850018 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1641607488 is about 40516.7556450415. The cubic root of 1641607488 is about 1179.6588806178.

The spelling of 1641607488 in words is "one billion, six hundred forty-one million, six hundred seven thousand, four hundred eighty-eight".