4193988 has 12 divisors (see below), whose sum is σ = 9786000. Its totient is φ = 1397992.

The previous prime is 4193977. The next prime is 4194007. The reversal of 4193988 is 8893914.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

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, 174738 + ... + 174761.

It is an arithmetic number, because the mean of its divisors is an integer number (815500).

Almost surely, 2^4193988 is an apocalyptic number.

It is an amenable number.

4193988 is an abundant number, since it is smaller than the sum of its proper divisors (5592012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4193988 is a wasteful number, since it uses less digits than its factorization.

4193988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349506 (or 349504 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 4193988 is about 2047.9228501093. The cubic root of 4193988 is about 161.2658442456.

The spelling of 4193988 in words is "four million, one hundred ninety-three thousand, nine hundred eighty-eight".