1400730220646 has 16 divisors (see below), whose sum is σ = 2121950074608. Its totient is φ = 693413868000.

The previous prime is 1400730220633. The next prime is 1400730220649. The reversal of 1400730220646 is 6460220370041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400730220649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13956881 + ... + 14056883.

It is an arithmetic number, because the mean of its divisors is an integer number (132621879663).

Almost surely, 2^{1400730220646} is an apocalyptic number.

1400730220646 is a deficient number, since it is larger than the sum of its proper divisors (721219853962).

1400730220646 is a wasteful number, since it uses less digits than its factorization.

1400730220646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169447.

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 1400730220646 its reverse (6460220370041), we get a palindrome (7860950590687).

The spelling of 1400730220646 in words is "one trillion, four hundred billion, seven hundred thirty million, two hundred twenty thousand, six hundred forty-six".