400335056747 has 4 divisors (see below), whose sum is σ = 400760493456. Its totient is φ = 399909620040.

The previous prime is 400335056731. The next prime is 400335056749. The reversal of 400335056747 is 747650533004.

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

It is a cyclic number.

It is not a de Polignac number, because 400335056747 - 2⁴ = 400335056731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400335056698 and 400335056707.

It is not an unprimeable number, because it can be changed into a prime (400335056749) 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, 212716943 + ... + 212718824.

It is an arithmetic number, because the mean of its divisors is an integer number (100190123364).

Almost surely, 2^400335056747 is an apocalyptic number.

400335056747 is a deficient number, since it is larger than the sum of its proper divisors (425436709).

400335056747 is an equidigital number, since it uses as much as digits as its factorization.

400335056747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425436708.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 400335056747 in words is "four hundred billion, three hundred thirty-five million, fifty-six thousand, seven hundred forty-seven".