1605842998 has 32 divisors (see below), whose sum is σ = 2505355776. Its totient is φ = 771428448.

The previous prime is 1605842993. The next prime is 1605842999. The reversal of 1605842998 is 8992485061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605842993) 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, 2619340 + ... + 2619952.

It is an arithmetic number, because the mean of its divisors is an integer number (78292368).

Almost surely, 2^1605842998 is an apocalyptic number.

1605842998 is a deficient number, since it is larger than the sum of its proper divisors (899512778).

1605842998 is a wasteful number, since it uses less digits than its factorization.

1605842998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 1605842998 is about 40072.9709155685. The cubic root of 1605842998 is about 1171.0291181544.

The spelling of 1605842998 in words is "one billion, six hundred five million, eight hundred forty-two thousand, nine hundred ninety-eight".