1400169 has 4 divisors (see below), whose sum is σ = 1866896. Its totient is φ = 933444.

The previous prime is 1400159. The next prime is 1400173. The reversal of 1400169 is 9610041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1400169 - 2⁸ = 1399913 is a prime.

It is a super-2 number, since 2×1400169² = 3920946457122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1400159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233359 + ... + 233364.

It is an arithmetic number, because the mean of its divisors is an integer number (466724).

2^1400169 is an apocalyptic number.

It is an amenable number.

1400169 is a deficient number, since it is larger than the sum of its proper divisors (466727).

1400169 is an equidigital number, since it uses as much as digits as its factorization.

1400169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466726.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1400169 is about 1183.2873699994. The cubic root of 1400169 is about 111.8733954182.

The spelling of 1400169 in words is "one million, four hundred thousand, one hundred sixty-nine".