1400200138 has 16 divisors (see below), whose sum is σ = 2224592640. Its totient is φ = 658696896.

The previous prime is 1400200133. The next prime is 1400200147. The reversal of 1400200138 is 8310020041.

It is not an unprimeable number, because it can be changed into a prime (1400200133) 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, 143623 + ... + 153061.

It is an arithmetic number, because the mean of its divisors is an integer number (139037040).

Almost surely, 2^1400200138 is an apocalyptic number.

1400200138 is a deficient number, since it is larger than the sum of its proper divisors (824392502).

1400200138 is a wasteful number, since it uses less digits than its factorization.

1400200138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13821.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1400200138 is about 37419.2482286857. The cubic root of 1400200138 is about 1118.7422472003.

Adding to 1400200138 its reverse (8310020041), we get a palindrome (9710220179).

The spelling of 1400200138 in words is "one billion, four hundred million, two hundred thousand, one hundred thirty-eight".