1400043 has 8 divisors (see below), whose sum is σ = 1917328. Its totient is φ = 908064.

The previous prime is 1400039. The next prime is 1400051. The reversal of 1400043 is 3400041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1400043 - 2² = 1400039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400023) 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 in 7 ways as a sum of consecutive naturals, for example, 6196 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (239666).

2^1400043 is an apocalyptic number.

1400043 is a deficient number, since it is larger than the sum of its proper divisors (517285).

1400043 is a wasteful number, since it uses less digits than its factorization.

1400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12653.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1400043 is about 1183.2341272969. The cubic root of 1400043 is about 111.8700395208.

Adding to 1400043 its reverse (3400041), we get a palindrome (4800084).

The spelling of 1400043 in words is "one million, four hundred thousand, forty-three".