40403274 has 8 divisors (see below), whose sum is σ = 80806560. Its totient is φ = 13467756.

The previous prime is 40403257. The next prime is 40403281. The reversal of 40403274 is 47230404.

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

40403274 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366934 + ... + 3366945.

It is an arithmetic number, because the mean of its divisors is an integer number (10100820).

Almost surely, 2^40403274 is an apocalyptic number.

40403274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40403274 is a wasteful number, since it uses less digits than its factorization.

40403274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733884.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 40403274 is about 6356.3569755010. The cubic root of 40403274 is about 343.1406631514.

Adding to 40403274 its reverse (47230404), we get a palindrome (87633678).

The spelling of 40403274 in words is "forty million, four hundred three thousand, two hundred seventy-four".