1988541379 has 8 divisors (see below), whose sum is σ = 2204881200. Its totient is φ = 1778128800.

The previous prime is 1988541371. The next prime is 1988541403. The reversal of 1988541379 is 9731458891.

It is a happy number.

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 1988541379 - 2³ = 1988541371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1988541371) 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, 1481104 + ... + 1482445.

It is an arithmetic number, because the mean of its divisors is an integer number (275610150).

Almost surely, 2^1988541379 is an apocalyptic number.

1988541379 is a deficient number, since it is larger than the sum of its proper divisors (216339821).

1988541379 is a wasteful number, since it uses less digits than its factorization.

1988541379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963621.

The product of its digits is 2177280, while the sum is 55.

The square root of 1988541379 is about 44593.0642477056. The cubic root of 1988541379 is about 1257.5102803671.

The spelling of 1988541379 in words is "one billion, nine hundred eighty-eight million, five hundred forty-one thousand, three hundred seventy-nine".