1400401 has 4 divisors (see below), whose sum is σ = 1461312. Its totient is φ = 1339492.

The previous prime is 1400387. The next prime is 1400411. The reversal of 1400401 is 1040041.

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 a cyclic number.

It is not a de Polignac number, because 1400401 - 2⁵ = 1400369 is a prime.

It is a super-2 number, since 2×1400401² = 3922245921602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400411) 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 in 3 ways as a sum of consecutive naturals, for example, 30421 + ... + 30466.

It is an arithmetic number, because the mean of its divisors is an integer number (365328).

2^1400401 is an apocalyptic number.

It is an amenable number.

1400401 is a deficient number, since it is larger than the sum of its proper divisors (60911).

1400401 is an equidigital number, since it uses as much as digits as its factorization.

1400401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60910.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1400401 is about 1183.3853979157. The cubic root of 1400401 is about 111.8795740044.

Adding to 1400401 its reverse (1040041), we get a palindrome (2440442).

It can be divided in two parts, 140040 and 1, that added together give a palindrome (140041).

The spelling of 1400401 in words is "one million, four hundred thousand, four hundred one".