40180294 has 24 divisors (see below), whose sum is σ = 76486248. Its totient is φ = 15654240.

The previous prime is 40180291. The next prime is 40180339. The reversal of 40180294 is 49208104.

It is a super-2 number, since 2×40180294² = 3228912051852872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40180291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17559 + ... + 19714.

It is an arithmetic number, because the mean of its divisors is an integer number (3186927).

Almost surely, 2^40180294 is an apocalyptic number.

40180294 is a deficient number, since it is larger than the sum of its proper divisors (36305954).

40180294 is a wasteful number, since it uses less digits than its factorization.

40180294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37300 (or 37293 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40180294 is about 6338.7927872742. The cubic root of 40180294 is about 342.5082499300.

Adding to 40180294 its reverse (49208104), we get a palindrome (89388398).

The spelling of 40180294 in words is "forty million, one hundred eighty thousand, two hundred ninety-four".