400280047348 has 24 divisors (see below), whose sum is σ = 702427861352. Its totient is φ = 199586623104.

The previous prime is 400280047333. The next prime is 400280047351. The reversal of 400280047348 is 843740082004.

It can be written as a sum of positive squares in 4 ways, for example, as 142258717584 + 258021329764 = 377172^2 + 507958^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 400280047348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6889990 + ... + 6947842.

Almost surely, 2^400280047348 is an apocalyptic number.

It is an amenable number.

400280047348 is a deficient number, since it is larger than the sum of its proper divisors (302147814004).

400280047348 is a wasteful number, since it uses less digits than its factorization.

400280047348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62611 (or 62609 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 400280047348 in words is "four hundred billion, two hundred eighty million, forty-seven thousand, three hundred forty-eight".