1940360181 has 16 divisors (see below), whose sum is σ = 2608438464. Its totient is φ = 1282945664.

The previous prime is 1940360171. The next prime is 1940360183. The reversal of 1940360181 is 1810630491.

It is a cyclic number.

It is not a de Polignac number, because 1940360181 - 2⁷ = 1940360053 is a prime.

It is a super-2 number, since 2×1940360181² = 7529995264020705522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940360183) 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, 822055 + ... + 824411.

It is an arithmetic number, because the mean of its divisors is an integer number (163027404).

Almost surely, 2^1940360181 is an apocalyptic number.

It is an amenable number.

1940360181 is a deficient number, since it is larger than the sum of its proper divisors (668078283).

1940360181 is a wasteful number, since it uses less digits than its factorization.

1940360181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1940360181 is about 44049.5196455081. The cubic root of 1940360181 is about 1247.2708844925.

The spelling of 1940360181 in words is "one billion, nine hundred forty million, three hundred sixty thousand, one hundred eighty-one".