1400224434989 has 2 divisors, whose sum is σ = 1400224434990. Its totient is φ = 1400224434988.

The previous prime is 1400224434977. The next prime is 1400224435007. The reversal of 1400224434989 is 9894344220041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711062130025 + 689162304964 = 843245^2 + 830158^2 .

It is an emirp because it is prime and its reverse (9894344220041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400224434989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400224439989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700112217494 + 700112217495.

It is an arithmetic number, because the mean of its divisors is an integer number (700112217495).

Almost surely, 2^{1400224434989} is an apocalyptic number.

It is an amenable number.

1400224434989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400224434989 is an equidigital number, since it uses as much as digits as its factorization.

1400224434989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 1400224434989 in words is "one trillion, four hundred billion, two hundred twenty-four million, four hundred thirty-four thousand, nine hundred eighty-nine".