40229747 has 2 divisors, whose sum is σ = 40229748. Its totient is φ = 40229746.

The previous prime is 40229743. The next prime is 40229863. The reversal of 40229747 is 74792204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40229747 - 2² = 40229743 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40229743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20114873 + 20114874.

It is an arithmetic number, because the mean of its divisors is an integer number (20114874).

Almost surely, 2^40229747 is an apocalyptic number.

40229747 is a deficient number, since it is larger than the sum of its proper divisors (1).

40229747 is an equidigital number, since it uses as much as digits as its factorization.

40229747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 40229747 is about 6342.6924093795. The cubic root of 40229747 is about 342.6487094651.

The spelling of 40229747 in words is "forty million, two hundred twenty-nine thousand, seven hundred forty-seven".