240347923 has 2 divisors, whose sum is σ = 240347924. Its totient is φ = 240347922.

The previous prime is 240347879. The next prime is 240347957. The reversal of 240347923 is 329743042.

It is a happy number.

It is an a-pointer prime, because the next prime (240347957) can be obtained adding 240347923 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240347923 is a prime.

It is not a weakly prime, because it can be changed into another prime (240347963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120173961 + 120173962.

It is an arithmetic number, because the mean of its divisors is an integer number (120173962).

Almost surely, 2^240347923 is an apocalyptic number.

240347923 is a deficient number, since it is larger than the sum of its proper divisors (1).

240347923 is an equidigital number, since it uses as much as digits as its factorization.

240347923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 240347923 is about 15503.1584846443. The cubic root of 240347923 is about 621.7466555436.

The spelling of 240347923 in words is "two hundred forty million, three hundred forty-seven thousand, nine hundred twenty-three".