23340739 has 2 divisors, whose sum is σ = 23340740. Its totient is φ = 23340738.

The previous prime is 23340697. The next prime is 23340769. The reversal of 23340739 is 93704332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23340739 - 2¹⁵ = 23307971 is a prime.

It is a super-2 number, since 2×23340739² = 1089580194132242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23340739.

It is not a weakly prime, because it can be changed into another prime (23340769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11670369 + 11670370.

It is an arithmetic number, because the mean of its divisors is an integer number (11670370).

Almost surely, 2^23340739 is an apocalyptic number.

23340739 is a deficient number, since it is larger than the sum of its proper divisors (1).

23340739 is an equidigital number, since it uses as much as digits as its factorization.

23340739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 23340739 is about 4831.2254139090. The cubic root of 23340739 is about 285.7841909545.

The spelling of 23340739 in words is "twenty-three million, three hundred forty thousand, seven hundred thirty-nine".