940436181 has 12 divisors (see below), whose sum is σ = 1402227840. Its totient is φ = 606732840.

The previous prime is 940436173. The next prime is 940436197. The reversal of 940436181 is 181634049.

940436181 is a `hidden beast` number, since 9 + 40 + 436 + 181 = 666.

It is not a de Polignac number, because 940436181 - 2³ = 940436173 is a prime.

It is a super-2 number, since 2×940436181² = 1768840421067729522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940436281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685091 + ... + 1685648.

It is an arithmetic number, because the mean of its divisors is an integer number (116852320).

Almost surely, 2^940436181 is an apocalyptic number.

It is an amenable number.

940436181 is a deficient number, since it is larger than the sum of its proper divisors (461791659).

940436181 is a wasteful number, since it uses less digits than its factorization.

940436181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370776 (or 3370773 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 940436181 is about 30666.5319362982. The cubic root of 940436181 is about 979.7376018988.

The spelling of 940436181 in words is "nine hundred forty million, four hundred thirty-six thousand, one hundred eighty-one".