9452340921 has 4 divisors (see below), whose sum is σ = 12603121232. Its totient is φ = 6301560612.

The previous prime is 9452340847. The next prime is 9452340959. The reversal of 9452340921 is 1290432549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9452340921 - 2¹¹ = 9452338873 is a prime.

It is a super-2 number, since 2×9452340921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9452340921.

It is not an unprimeable number, because it can be changed into a prime (9452340991) 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, 1575390151 + ... + 1575390156.

It is an arithmetic number, because the mean of its divisors is an integer number (3150780308).

Almost surely, 2^9452340921 is an apocalyptic number.

It is an amenable number.

9452340921 is a deficient number, since it is larger than the sum of its proper divisors (3150780311).

9452340921 is a wasteful number, since it uses less digits than its factorization.

9452340921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150780310.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 9452340921 is about 97223.1501289688. The cubic root of 9452340921 is about 2114.3641784298.

The spelling of 9452340921 in words is "nine billion, four hundred fifty-two million, three hundred forty thousand, nine hundred twenty-one".