40019274 has 24 divisors (see below), whose sum is σ = 89053380. Its totient is φ = 12979008.

The previous prime is 40019261. The next prime is 40019279. The reversal of 40019274 is 47291004.

It is a happy number.

40019274 is a `hidden beast` number, since 400 + 192 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27720225 + 12299049 = 5265^2 + 3507^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40019279) 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, 29379 + ... + 30710.

Almost surely, 2^40019274 is an apocalyptic number.

40019274 is an abundant number, since it is smaller than the sum of its proper divisors (49034106).

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

40019274 is a wasteful number, since it uses less digits than its factorization.

40019274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60134 (or 60131 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40019274 is about 6326.0788803176. The cubic root of 40019274 is about 342.0501106423.

The spelling of 40019274 in words is "forty million, nineteen thousand, two hundred seventy-four".