23405401 has 2 divisors, whose sum is σ = 23405402. Its totient is φ = 23405400.

The previous prime is 23405387. The next prime is 23405429. The reversal of 23405401 is 10450432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13133376 + 10272025 = 3624^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 23405401 - 2⁹ = 23404889 is a prime.

It is not a weakly prime, because it can be changed into another prime (23405471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702700 + 11702701.

It is an arithmetic number, because the mean of its divisors is an integer number (11702701).

Almost surely, 2^23405401 is an apocalyptic number.

It is an amenable number.

23405401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23405401 is an equidigital number, since it uses as much as digits as its factorization.

23405401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23405401 is about 4837.9128764375. The cubic root of 23405401 is about 286.0478549684.

Adding to 23405401 its reverse (10450432), we get a palindrome (33855833).

The spelling of 23405401 in words is "twenty-three million, four hundred five thousand, four hundred one".