40250243 has 4 divisors (see below), whose sum is σ = 43909368. Its totient is φ = 36591120.

The previous prime is 40250239. The next prime is 40250251. The reversal of 40250243 is 34205204.

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

It is a cyclic number.

It is not a de Polignac number, because 40250243 - 2² = 40250239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40250293) 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, 1829546 + ... + 1829567.

It is an arithmetic number, because the mean of its divisors is an integer number (10977342).

Almost surely, 2^40250243 is an apocalyptic number.

40250243 is a deficient number, since it is larger than the sum of its proper divisors (3659125).

40250243 is a wasteful number, since it uses less digits than its factorization.

40250243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659124.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40250243 is about 6344.3079212787. The cubic root of 40250243 is about 342.7068897599.

Adding to 40250243 its reverse (34205204), we get a palindrome (74455447).

The spelling of 40250243 in words is "forty million, two hundred fifty thousand, two hundred forty-three".