1400423 has 2 divisors, whose sum is σ = 1400424. Its totient is φ = 1400422.

The previous prime is 1400417. The next prime is 1400449. The reversal of 1400423 is 3240041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400423 - 2¹⁰ = 1399399 is a prime.

It is a super-2 number, since 2×1400423² = 3922369157858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400398 and 1400407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700211 + 700212.

It is an arithmetic number, because the mean of its divisors is an integer number (700212).

2^1400423 is an apocalyptic number.

1400423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400423 is an equidigital number, since it uses as much as digits as its factorization.

1400423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1400423 is about 1183.3946932448. The cubic root of 1400423 is about 111.8801598694.

Adding to 1400423 its reverse (3240041), we get a palindrome (4640464).

The spelling of 1400423 in words is "one million, four hundred thousand, four hundred twenty-three".