1400443361 has 2 divisors, whose sum is σ = 1400443362. Its totient is φ = 1400443360.

The previous prime is 1400443337. The next prime is 1400443397. The reversal of 1400443361 is 1633440041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291971136 + 108472225 = 35944^2 + 10415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400443361 is a prime.

It is a super-2 number, since 2×1400443361² = 3922483214737952642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1400443361.

It is not a weakly prime, because it can be changed into another prime (1400443301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700221680 + 700221681.

It is an arithmetic number, because the mean of its divisors is an integer number (700221681).

Almost surely, 2^1400443361 is an apocalyptic number.

It is an amenable number.

1400443361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400443361 is an equidigital number, since it uses as much as digits as its factorization.

1400443361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1400443361 is about 37422.4980593225. The cubic root of 1400443361 is about 1118.8070208195.

The spelling of 1400443361 in words is "one billion, four hundred million, four hundred forty-three thousand, three hundred sixty-one".