2372029921 has 4 divisors (see below), whose sum is σ = 2372777392. Its totient is φ = 2371282452.

The previous prime is 2372029909. The next prime is 2372029963. The reversal of 2372029921 is 1299202732.

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 a cyclic number.

It is not a de Polignac number, because 2372029921 - 2⁵ = 2372029889 is a prime.

It is a super-2 number, since 2×2372029921² = 11253051892238532482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2372029021) 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, 368955 + ... + 375328.

It is an arithmetic number, because the mean of its divisors is an integer number (593194348).

Almost surely, 2^2372029921 is an apocalyptic number.

It is an amenable number.

2372029921 is a deficient number, since it is larger than the sum of its proper divisors (747471).

2372029921 is an equidigital number, since it uses as much as digits as its factorization.

2372029921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747470.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2372029921 is about 48703.4898236256. The cubic root of 2372029921 is about 1333.6444264865.

The spelling of 2372029921 in words is "two billion, three hundred seventy-two million, twenty-nine thousand, nine hundred twenty-one".