240607021 has 2 divisors, whose sum is σ = 240607022. Its totient is φ = 240607020.

The previous prime is 240607019. The next prime is 240607049. The reversal of 240607021 is 120706042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144841225 + 95765796 = 12035^2 + 9786^2 .

It is a cyclic number.

It is not a de Polignac number, because 240607021 - 2¹ = 240607019 is a prime.

Together with 240607019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240606983 and 240607001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240607091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120303510 + 120303511.

It is an arithmetic number, because the mean of its divisors is an integer number (120303511).

Almost surely, 2^240607021 is an apocalyptic number.

It is an amenable number.

240607021 is a deficient number, since it is larger than the sum of its proper divisors (1).

240607021 is an equidigital number, since it uses as much as digits as its factorization.

240607021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 240607021 is about 15511.5125310203. The cubic root of 240607021 is about 621.9699921421.

The spelling of 240607021 in words is "two hundred forty million, six hundred seven thousand, twenty-one".