2381004921 has 16 divisors (see below), whose sum is σ = 3364200000. Its totient is φ = 1492727808.

The previous prime is 2381004917. The next prime is 2381004943. The reversal of 2381004921 is 1294001832.

2381004921 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2381004921 - 2² = 2381004917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2381004961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45010 + ... + 82388.

It is an arithmetic number, because the mean of its divisors is an integer number (210262500).

Almost surely, 2^2381004921 is an apocalyptic number.

It is an amenable number.

2381004921 is a deficient number, since it is larger than the sum of its proper divisors (983195079).

2381004921 is a wasteful number, since it uses less digits than its factorization.

2381004921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38648.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2381004921 is about 48795.5420197378. The cubic root of 2381004921 is about 1335.3243370248.

The spelling of 2381004921 in words is "two billion, three hundred eighty-one million, four thousand, nine hundred twenty-one".