10406401 has 4 divisors (see below), whose sum is σ = 10421332. Its totient is φ = 10391472.

The previous prime is 10406393. The next prime is 10406423. The reversal of 10406401 is 10460401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10460401 = 7 ⋅1494343.

It can be written as a sum of positive squares in 2 ways, for example, as 10246401 + 160000 = 3201^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 10406401 - 2³ = 10406393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10406801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6366 + ... + 7831.

It is an arithmetic number, because the mean of its divisors is an integer number (2605333).

Almost surely, 2^10406401 is an apocalyptic number.

It is an amenable number.

10406401 is a deficient number, since it is larger than the sum of its proper divisors (14931).

10406401 is an equidigital number, since it uses as much as digits as its factorization.

10406401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14930.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10406401 is about 3225.8953795807. The cubic root of 10406401 is about 218.3233495166.

Adding to 10406401 its reverse (10460401), we get a palindrome (20866802).

The spelling of 10406401 in words is "ten million, four hundred six thousand, four hundred one".