1988294741 has 8 divisors (see below), whose sum is σ = 1997020224. Its totient is φ = 1979588800.

The previous prime is 1988294719. The next prime is 1988294761. The reversal of 1988294741 is 1474928891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1988294741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988294761) 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, 221360 + ... + 230166.

It is an arithmetic number, because the mean of its divisors is an integer number (249627528).

Almost surely, 2^1988294741 is an apocalyptic number.

It is an amenable number.

1988294741 is a deficient number, since it is larger than the sum of its proper divisors (8725483).

1988294741 is an equidigital number, since it uses as much as digits as its factorization.

1988294741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9771.

The product of its digits is 1161216, while the sum is 53.

The square root of 1988294741 is about 44590.2987318991. The cubic root of 1988294741 is about 1257.4582887168.

The spelling of 1988294741 in words is "one billion, nine hundred eighty-eight million, two hundred ninety-four thousand, seven hundred forty-one".