1400143443 has 12 divisors (see below), whose sum is σ = 1983134040. Its totient is φ = 878520832.

The previous prime is 1400143429. The next prime is 1400143447. The reversal of 1400143443 is 3443410041.

It is not a de Polignac number, because 1400143443 - 2⁶ = 1400143379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1400143447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806598 + ... + 808331.

It is an arithmetic number, because the mean of its divisors is an integer number (165261170).

Almost surely, 2^1400143443 is an apocalyptic number.

1400143443 is a deficient number, since it is larger than the sum of its proper divisors (582990597).

1400143443 is a wasteful number, since it uses less digits than its factorization.

1400143443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614966 (or 1614949 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1400143443 is about 37418.4906563587. The cubic root of 1400143443 is about 1118.7271474666.

Adding to 1400143443 its reverse (3443410041), we get a palindrome (4843553484).

The spelling of 1400143443 in words is "one billion, four hundred million, one hundred forty-three thousand, four hundred forty-three".