20414939 has 2 divisors, whose sum is σ = 20414940. Its totient is φ = 20414938.

The previous prime is 20414923. The next prime is 20414951. The reversal of 20414939 is 93941402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20414939 - 2⁴ = 20414923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20414959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10207469 + 10207470.

It is an arithmetic number, because the mean of its divisors is an integer number (10207470).

Almost surely, 2^20414939 is an apocalyptic number.

20414939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20414939 is an equidigital number, since it uses as much as digits as its factorization.

20414939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20414939 is about 4518.2893886957. The cubic root of 20414939 is about 273.3061234398.

The spelling of 20414939 in words is "twenty million, four hundred fourteen thousand, nine hundred thirty-nine".