40406074 has 8 divisors (see below), whose sum is σ = 62087508. Its totient is φ = 19710240.

The previous prime is 40405993. The next prime is 40406081. The reversal of 40406074 is 47060404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33143049 + 7263025 = 5757^2 + 2695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 246297 + ... + 246460.

Almost surely, 2^40406074 is an apocalyptic number.

40406074 is a deficient number, since it is larger than the sum of its proper divisors (21681434).

40406074 is a wasteful number, since it uses less digits than its factorization.

40406074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492800.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40406074 is about 6356.5772236322. The cubic root of 40406074 is about 343.1485896680.

Adding to 40406074 its reverse (47060404), we get a palindrome (87466478).

The spelling of 40406074 in words is "forty million, four hundred six thousand, seventy-four".