1923452999 has 4 divisors (see below), whose sum is σ = 2071410936. Its totient is φ = 1775495064.

The previous prime is 1923452969. The next prime is 1923453013. The reversal of 1923452999 is 9992543291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1923452999 - 2¹² = 1923448903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1923452999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923452969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73978949 + ... + 73978974.

It is an arithmetic number, because the mean of its divisors is an integer number (517852734).

Almost surely, 2^1923452999 is an apocalyptic number.

1923452999 is a deficient number, since it is larger than the sum of its proper divisors (147957937).

1923452999 is a wasteful number, since it uses less digits than its factorization.

1923452999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147957936.

The product of its digits is 1574640, while the sum is 53.

The square root of 1923452999 is about 43857.1886809905. The cubic root of 1923452999 is about 1243.6376444081.

The spelling of 1923452999 in words is "one billion, nine hundred twenty-three million, four hundred fifty-two thousand, nine hundred ninety-nine".