1641247604 has 12 divisors (see below), whose sum is σ = 2920864800. Its totient is φ = 806714808.

The previous prime is 1641247583. The next prime is 1641247631. The reversal of 1641247604 is 4067421461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3476984 + ... + 3477455.

It is an arithmetic number, because the mean of its divisors is an integer number (243405400).

Almost surely, 2^1641247604 is an apocalyptic number.

It is an amenable number.

1641247604 is a deficient number, since it is larger than the sum of its proper divisors (1279617196).

1641247604 is a wasteful number, since it uses less digits than its factorization.

1641247604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954502 (or 6954500 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1641247604 is about 40512.3142266645. The cubic root of 1641247604 is about 1179.5726701225.

The spelling of 1641247604 in words is "one billion, six hundred forty-one million, two hundred forty-seven thousand, six hundred four".