40234147 has 4 divisors (see below), whose sum is σ = 40743520. Its totient is φ = 39724776.

The previous prime is 40234127. The next prime is 40234151. The reversal of 40234147 is 74143204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40234147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40234127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254568 + ... + 254725.

It is an arithmetic number, because the mean of its divisors is an integer number (10185880).

Almost surely, 2^40234147 is an apocalyptic number.

40234147 is a deficient number, since it is larger than the sum of its proper divisors (509373).

40234147 is an equidigital number, since it uses as much as digits as its factorization.

40234147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509372.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40234147 is about 6343.0392557511. The cubic root of 40234147 is about 342.6612010455.

The spelling of 40234147 in words is "forty million, two hundred thirty-four thousand, one hundred forty-seven".