20462423 has 2 divisors, whose sum is σ = 20462424. Its totient is φ = 20462422.

The previous prime is 20462419. The next prime is 20462459. The reversal of 20462423 is 32426402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20462423 - 2² = 20462419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20468423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10231211 + 10231212.

It is an arithmetic number, because the mean of its divisors is an integer number (10231212).

Almost surely, 2^20462423 is an apocalyptic number.

20462423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20462423 is an equidigital number, since it uses as much as digits as its factorization.

20462423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20462423 is about 4523.5409802499. The cubic root of 20462423 is about 273.5178575883.

Adding to 20462423 its reverse (32426402), we get a palindrome (52888825).

The spelling of 20462423 in words is "twenty million, four hundred sixty-two thousand, four hundred twenty-three".