1641489341 has 8 divisors (see below), whose sum is σ = 1677037824. Its totient is φ = 1606110480.

The previous prime is 1641489337. The next prime is 1641489371. The reversal of 1641489341 is 1439841461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1641489341 - 2² = 1641489337 is a prime.

It is a super-3 number, since 3×1641489341³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641489371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22745 + ... + 61646.

It is an arithmetic number, because the mean of its divisors is an integer number (209629728).

Almost surely, 2^1641489341 is an apocalyptic number.

It is an amenable number.

1641489341 is a deficient number, since it is larger than the sum of its proper divisors (35548483).

1641489341 is an equidigital number, since it uses as much as digits as its factorization.

1641489341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84811.

The product of its digits is 82944, while the sum is 41.

The square root of 1641489341 is about 40515.2976170730. The cubic root of 1641489341 is about 1179.6305798004.

The spelling of 1641489341 in words is "one billion, six hundred forty-one million, four hundred eighty-nine thousand, three hundred forty-one".