406443600253 has 16 divisors (see below), whose sum is σ = 418821024960. Its totient is φ = 394140612096.

The previous prime is 406443600209. The next prime is 406443600307. The reversal of 406443600253 is 352006344604.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 406443600253 - 2⁹ = 406443599741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406443600203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30647538 + ... + 30660796.

It is an arithmetic number, because the mean of its divisors is an integer number (26176314060).

Almost surely, 2^406443600253 is an apocalyptic number.

It is an amenable number.

406443600253 is a deficient number, since it is larger than the sum of its proper divisors (12377424707).

406443600253 is a wasteful number, since it uses less digits than its factorization.

406443600253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15996.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 406443600253 its reverse (352006344604), we get a palindrome (758449944857).

The spelling of 406443600253 in words is "four hundred six billion, four hundred forty-three million, six hundred thousand, two hundred fifty-three".