2170230381 has 32 divisors (see below), whose sum is σ = 3525709440. Its totient is φ = 1308441600.

The previous prime is 2170230347. The next prime is 2170230479. The reversal of 2170230381 is 1830320712.

It is not a de Polignac number, because 2170230381 - 2⁶ = 2170230317 is a prime.

It is a super-2 number, since 2×2170230381² = 9419799813230810322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170238381) 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, 38391 + ... + 76251.

It is an arithmetic number, because the mean of its divisors is an integer number (110178420).

Almost surely, 2^2170230381 is an apocalyptic number.

It is an amenable number.

2170230381 is a deficient number, since it is larger than the sum of its proper divisors (1355479059).

2170230381 is a wasteful number, since it uses less digits than its factorization.

2170230381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38074 (or 38068 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2170230381 is about 46585.7315172790. The cubic root of 2170230381 is about 1294.6984049432.

The spelling of 2170230381 in words is "two billion, one hundred seventy million, two hundred thirty thousand, three hundred eighty-one".