40147396 has 12 divisors (see below), whose sum is σ = 70459452. Its totient is φ = 20016128.

The previous prime is 40147391. The next prime is 40147403. The reversal of 40147396 is 69374104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16000000 + 24147396 = 4000^2 + 4914^2 .

It is a super-3 number, since 3×40147396³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40147391) 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 3 ways as a sum of consecutive naturals, for example, 12805 + ... + 15628.

It is an arithmetic number, because the mean of its divisors is an integer number (5871621).

Almost surely, 2^40147396 is an apocalyptic number.

It is an amenable number.

40147396 is a deficient number, since it is larger than the sum of its proper divisors (30312056).

40147396 is a wasteful number, since it uses less digits than its factorization.

40147396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28790 (or 28788 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 40147396 is about 6336.1972822822. The cubic root of 40147396 is about 342.4147471048.

The spelling of 40147396 in words is "forty million, one hundred forty-seven thousand, three hundred ninety-six".