40234347 has 8 divisors (see below), whose sum is σ = 59606480. Its totient is φ = 26822880.

The previous prime is 40234331. The next prime is 40234387. The reversal of 40234347 is 74343204.

It is not a de Polignac number, because 40234347 - 2⁴ = 40234331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1490161 = 40234347 / (4 + 0 + 2 + 3 + 4 + 3 + 4 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40234347.

It is not an unprimeable number, because it can be changed into a prime (40234307) 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, 745054 + ... + 745107.

It is an arithmetic number, because the mean of its divisors is an integer number (7450810).

Almost surely, 2^40234347 is an apocalyptic number.

40234347 is a deficient number, since it is larger than the sum of its proper divisors (19372133).

40234347 is a wasteful number, since it uses less digits than its factorization.

40234347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490170 (or 1490164 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 40234347 is about 6343.0550210447. The cubic root of 40234347 is about 342.6617688230.

The spelling of 40234347 in words is "forty million, two hundred thirty-four thousand, three hundred forty-seven".