240429979 has 2 divisors, whose sum is σ = 240429980. Its totient is φ = 240429978.

The previous prime is 240429977. The next prime is 240430007. The reversal of 240429979 is 979924042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240429979 - 2¹ = 240429977 is a prime.

Together with 240429977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (240429977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120214989 + 120214990.

It is an arithmetic number, because the mean of its divisors is an integer number (120214990).

Almost surely, 2^240429979 is an apocalyptic number.

240429979 is a deficient number, since it is larger than the sum of its proper divisors (1).

240429979 is an equidigital number, since it uses as much as digits as its factorization.

240429979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 240429979 is about 15505.8046872776. The cubic root of 240429979 is about 621.8174033136.

The spelling of 240429979 in words is "two hundred forty million, four hundred twenty-nine thousand, nine hundred seventy-nine".