2340028661 has 2 divisors, whose sum is σ = 2340028662. Its totient is φ = 2340028660.

The previous prime is 2340028577. The next prime is 2340028709. The reversal of 2340028661 is 1668200432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1716527761 + 623500900 = 41431^2 + 24970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340028661 - 2²⁶ = 2272919797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340078661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170014330 + 1170014331.

It is an arithmetic number, because the mean of its divisors is an integer number (1170014331).

Almost surely, 2^2340028661 is an apocalyptic number.

It is an amenable number.

2340028661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340028661 is an equidigital number, since it uses as much as digits as its factorization.

2340028661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2340028661 is about 48373.8427355115. The cubic root of 2340028661 is about 1327.6198145753.

The spelling of 2340028661 in words is "two billion, three hundred forty million, twenty-eight thousand, six hundred sixty-one".