1988190841 has 8 divisors (see below), whose sum is σ = 2447004224. Its totient is φ = 1573074000.

The previous prime is 1988190823. The next prime is 1988190899. The reversal of 1988190841 is 1480918891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1988190841 - 2⁷ = 1988190713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1988190811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10924035 + ... + 10924216.

It is an arithmetic number, because the mean of its divisors is an integer number (305875528).

Almost surely, 2^1988190841 is an apocalyptic number.

It is an amenable number.

1988190841 is a deficient number, since it is larger than the sum of its proper divisors (458813383).

1988190841 is a wasteful number, since it uses less digits than its factorization.

1988190841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21848271.

The product of its (nonzero) digits is 165888, while the sum is 49.

The square root of 1988190841 is about 44589.1336650534. The cubic root of 1988190841 is about 1257.4363851581.

The spelling of 1988190841 in words is "one billion, nine hundred eighty-eight million, one hundred ninety thousand, eight hundred forty-one".