1400443 has 8 divisors (see below), whose sum is σ = 1617840. Its totient is φ = 1198080.

The previous prime is 1400423. The next prime is 1400449. The reversal of 1400443 is 3440041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400443 - 2⁵ = 1400411 is a prime.

It is a super-2 number, since 2×1400443² = 3922481192498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (202230).

2^1400443 is an apocalyptic number.

1400443 is a deficient number, since it is larger than the sum of its proper divisors (217397).

1400443 is a wasteful number, since it uses less digits than its factorization.

1400443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1400443 is about 1183.4031434807. The cubic root of 1400443 is about 111.8806924686.

Adding to 1400443 its reverse (3440041), we get a palindrome (4840484).

The spelling of 1400443 in words is "one million, four hundred thousand, four hundred forty-three".