1923023340 has 216 divisors, whose sum is σ = 7083035232. Its totient is φ = 413614080.

The previous prime is 1923023309. The next prime is 1923023363. The reversal of 1923023340 is 433203291.

It is a happy number.

1923023340 is a `hidden beast` number, since 19 + 2 + 302 + 3 + 340 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 361500 + ... + 366780.

Almost surely, 2^1923023340 is an apocalyptic number.

1923023340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923023340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3541517616).

1923023340 is an abundant number, since it is smaller than the sum of its proper divisors (5160011892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1923023340 is a wasteful number, since it uses less digits than its factorization.

1923023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5315 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1923023340 is about 43852.2900200206. The cubic root of 1923023340 is about 1243.5450366693.

The spelling of 1923023340 in words is "one billion, nine hundred twenty-three million, twenty-three thousand, three hundred forty".