1641004079 has 16 divisors (see below), whose sum is σ = 1930145280. Its totient is φ = 1375457760.

The previous prime is 1641004061. The next prime is 1641004081. The reversal of 1641004079 is 9704001461.

It is a cyclic number.

It is not a de Polignac number, because 1641004079 - 2⁸ = 1641003823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641004009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125174 + ... + 137660.

It is an arithmetic number, because the mean of its divisors is an integer number (120634080).

Almost surely, 2^1641004079 is an apocalyptic number.

1641004079 is a deficient number, since it is larger than the sum of its proper divisors (289141201).

1641004079 is a wasteful number, since it uses less digits than its factorization.

1641004079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13430.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1641004079 is about 40509.3085475425. The cubic root of 1641004079 is about 1179.5143263677.

The spelling of 1641004079 in words is "one billion, six hundred forty-one million, four thousand, seventy-nine".