406406440753 has 4 divisors (see below), whose sum is σ = 407538492480. Its totient is φ = 405274389028.

The previous prime is 406406440751. The next prime is 406406440763. The reversal of 406406440753 is 357044604604.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406406440753 - 2¹ = 406406440751 is a prime.

It is a super-3 number, since 3×406406440753³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406406440751) 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 3 ways as a sum of consecutive naturals, for example, 566025325 + ... + 566026042.

It is an arithmetic number, because the mean of its divisors is an integer number (101884623120).

Almost surely, 2^406406440753 is an apocalyptic number.

It is an amenable number.

406406440753 is a deficient number, since it is larger than the sum of its proper divisors (1132051727).

406406440753 is a wasteful number, since it uses less digits than its factorization.

406406440753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132051726.

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 406406440753 in words is "four hundred six billion, four hundred six million, four hundred forty thousand, seven hundred fifty-three".