1608190988 has 12 divisors (see below), whose sum is σ = 2815337952. Its totient is φ = 803808720.

The previous prime is 1608190979. The next prime is 1608191003. The reversal of 1608190988 is 8890918061.

It is a happy number.

It is a super-2 number, since 2×1608190988² = 5172556507768832288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58820 + ... + 81707.

It is an arithmetic number, because the mean of its divisors is an integer number (234611496).

Almost surely, 2^1608190988 is an apocalyptic number.

It is an amenable number.

1608190988 is a deficient number, since it is larger than the sum of its proper divisors (1207146964).

1608190988 is a wasteful number, since it uses less digits than its factorization.

1608190988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143392 (or 143390 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 1608190988 is about 40102.2566447326. The cubic root of 1608190988 is about 1171.5995819034.

The spelling of 1608190988 in words is "one billion, six hundred eight million, one hundred ninety thousand, nine hundred eighty-eight".