1923740749 has 8 divisors (see below), whose sum is σ = 2228678720. Its totient is φ = 1626332256.

The previous prime is 1923740737. The next prime is 1923740759. The reversal of 1923740749 is 9470473291.

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 1923740749 - 2²⁹ = 1386869837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1923740699 and 1923740708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923740729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881819 + ... + 1882840.

It is an arithmetic number, because the mean of its divisors is an integer number (278584840).

Almost surely, 2^1923740749 is an apocalyptic number.

It is an amenable number.

1923740749 is a deficient number, since it is larger than the sum of its proper divisors (304937971).

1923740749 is an equidigital number, since it uses as much as digits as its factorization.

1923740749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764739.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1923740749 is about 43860.4690923387. The cubic root of 1923740749 is about 1243.6996576881.

The spelling of 1923740749 in words is "one billion, nine hundred twenty-three million, seven hundred forty thousand, seven hundred forty-nine".