945888381 has 32 divisors (see below), whose sum is σ = 1561852800. Its totient is φ = 562256640.

The previous prime is 945888353. The next prime is 945888397. The reversal of 945888381 is 183888549.

945888381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 945888381 - 2¹⁹ = 945364093 is a prime.

It is a super-2 number, since 2×945888381² = 1789409658621602322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945881381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45510 + ... + 62951.

It is an arithmetic number, because the mean of its divisors is an integer number (48807900).

Almost surely, 2^945888381 is an apocalyptic number.

It is an amenable number.

945888381 is a deficient number, since it is larger than the sum of its proper divisors (615964419).

945888381 is a wasteful number, since it uses less digits than its factorization.

945888381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108506 (or 108500 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 945888381 is about 30755.2984215728. The cubic root of 945888381 is about 981.6273050164.

The spelling of 945888381 in words is "nine hundred forty-five million, eight hundred eighty-eight thousand, three hundred eighty-one".