40530274 has 4 divisors (see below), whose sum is σ = 60795414. Its totient is φ = 20265136.

The previous prime is 40530271. The next prime is 40530283. The reversal of 40530274 is 47203504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28676025 + 11854249 = 5355^2 + 3443^2 .

It is a super-2 number, since 2×40530274² = 3285406221030152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40530271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132567 + ... + 10132570.

Almost surely, 2^40530274 is an apocalyptic number.

40530274 is a deficient number, since it is larger than the sum of its proper divisors (20265140).

40530274 is a wasteful number, since it uses less digits than its factorization.

40530274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20265139.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 40530274 is about 6366.3391364268. The cubic root of 40530274 is about 343.4998195502.

Adding to 40530274 its reverse (47203504), we get a palindrome (87733778).

It can be divided in two parts, 40530 and 274, that added together give a palindrome (40804).

The spelling of 40530274 in words is "forty million, five hundred thirty thousand, two hundred seventy-four".