2330997921 has 24 divisors (see below), whose sum is σ = 3852036864. Its totient is φ = 1330600320.

The previous prime is 2330997917. The next prime is 2330997961. The reversal of 2330997921 is 1297990332.

It is a happy number.

It is not a de Polignac number, because 2330997921 - 2² = 2330997917 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2330997961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42616 + ... + 80486.

It is an arithmetic number, because the mean of its divisors is an integer number (160501536).

Almost surely, 2^2330997921 is an apocalyptic number.

2330997921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2330997921 is a deficient number, since it is larger than the sum of its proper divisors (1521038943).

2330997921 is a wasteful number, since it uses less digits than its factorization.

2330997921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38861 (or 38858 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 2330997921 is about 48280.4092878261. The cubic root of 2330997921 is about 1325.9097435206.

The spelling of 2330997921 in words is "two billion, three hundred thirty million, nine hundred ninety-seven thousand, nine hundred twenty-one".