1938742601 has 8 divisors (see below), whose sum is σ = 1949834304. Its totient is φ = 1927663920.

The previous prime is 1938742549. The next prime is 1938742609. The reversal of 1938742601 is 1062478391.

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 1938742601 - 2²⁶ = 1871633737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938742609) 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, 550436 + ... + 553946.

It is an arithmetic number, because the mean of its divisors is an integer number (243729288).

Almost surely, 2^1938742601 is an apocalyptic number.

It is an amenable number.

1938742601 is a deficient number, since it is larger than the sum of its proper divisors (11091703).

1938742601 is a wasteful number, since it uses less digits than its factorization.

1938742601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1938742601 is about 44031.1548905999. The cubic root of 1938742601 is about 1246.9241926149.

The spelling of 1938742601 in words is "one billion, nine hundred thirty-eight million, seven hundred forty-two thousand, six hundred one".