40247306 has 16 divisors (see below), whose sum is σ = 65959488. Its totient is φ = 18266400.

The previous prime is 40247303. The next prime is 40247321. The reversal of 40247306 is 60374204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40247303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22526 + ... + 24246.

It is an arithmetic number, because the mean of its divisors is an integer number (4122468).

Almost surely, 2^40247306 is an apocalyptic number.

40247306 is a deficient number, since it is larger than the sum of its proper divisors (25712182).

40247306 is a wasteful number, since it uses less digits than its factorization.

40247306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 40247306 is about 6344.0764497285. The cubic root of 40247306 is about 342.6985539541.

The spelling of 40247306 in words is "forty million, two hundred forty-seven thousand, three hundred six".