406740733369 has 4 divisors (see below), whose sum is σ = 406752639460. Its totient is φ = 406728827280.

The previous prime is 406740733339. The next prime is 406740733387. The reversal of 406740733369 is 963337047604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 400167577744 + 6573155625 = 632588^2 + 81075^2 .

It is a cyclic number.

It is not a de Polignac number, because 406740733369 - 2¹¹ = 406740731321 is a prime.

It is a super-2 number, since 2×406740733369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406740733339) 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, 5901654 + ... + 5970175.

It is an arithmetic number, because the mean of its divisors is an integer number (101688159865).

Almost surely, 2^406740733369 is an apocalyptic number.

It is an amenable number.

406740733369 is a deficient number, since it is larger than the sum of its proper divisors (11906091).

406740733369 is a wasteful number, since it uses less digits than its factorization.

406740733369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906090.

The product of its (nonzero) digits is 6858432, while the sum is 52.

The spelling of 406740733369 in words is "four hundred six billion, seven hundred forty million, seven hundred thirty-three thousand, three hundred sixty-nine".