240172043 has 4 divisors (see below), whose sum is σ = 240210168. Its totient is φ = 240133920.

The previous prime is 240172033. The next prime is 240172063. The reversal of 240172043 is 340271042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340271042 = 2 ⋅170135521.

It is a cyclic number.

It is not a de Polignac number, because 240172043 - 2⁶ = 240171979 is a prime.

It is a super-2 number, since 2×240172043² = 115365220477587698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240172013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7118 + ... + 23043.

It is an arithmetic number, because the mean of its divisors is an integer number (60052542).

Almost surely, 2^240172043 is an apocalyptic number.

240172043 is a deficient number, since it is larger than the sum of its proper divisors (38125).

240172043 is an equidigital number, since it uses as much as digits as its factorization.

240172043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38124.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 240172043 is about 15497.4850540338. The cubic root of 240172043 is about 621.5949595009.

The spelling of 240172043 in words is "two hundred forty million, one hundred seventy-two thousand, forty-three".