1400344443 has 20 divisors (see below), whose sum is σ = 2182826448. Its totient is φ = 892972080.

The previous prime is 1400344411. The next prime is 1400344469. The reversal of 1400344443 is 3444430041.

It is not a de Polignac number, because 1400344443 - 2⁵ = 1400344411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1400344483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 373968 + ... + 377693.

Almost surely, 2^1400344443 is an apocalyptic number.

1400344443 is a deficient number, since it is larger than the sum of its proper divisors (782482005).

1400344443 is an equidigital number, since it uses as much as digits as its factorization.

1400344443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751696 (or 751687 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1400344443 is about 37421.1763978633. The cubic root of 1400344443 is about 1118.7806785050.

Adding to 1400344443 its reverse (3444430041), we get a palindrome (4844774484).

The spelling of 1400344443 in words is "one billion, four hundred million, three hundred forty-four thousand, four hundred forty-three".