1400369 has 2 divisors, whose sum is σ = 1400370. Its totient is φ = 1400368.

The previous prime is 1400353. The next prime is 1400383. The reversal of 1400369 is 9630041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 270400 = 1063^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400369 - 2⁴ = 1400353 is a prime.

It is a super-2 number, since 2×1400369² = 3922066672322, which contains 22 as substring.

1400369 is a modest number, since divided by 369 gives 14 as remainder.

It is not a weakly prime, because it can be changed into another prime (1400669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700184 + 700185.

It is an arithmetic number, because the mean of its divisors is an integer number (700185).

2^1400369 is an apocalyptic number.

It is an amenable number.

1400369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400369 is an equidigital number, since it uses as much as digits as its factorization.

1400369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1400369 is about 1183.3718773065. The cubic root of 1400369 is about 111.8787218262.

The spelling of 1400369 in words is "one million, four hundred thousand, three hundred sixty-nine".