1400200042 has 4 divisors (see below), whose sum is σ = 2100300066. Its totient is φ = 700100020.

The previous prime is 1400200027. The next prime is 1400200073. The reversal of 1400200042 is 2400020041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1232782321 + 167417721 = 35111^2 + 12939^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1400199995 and 1400200031.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350050009 + ... + 350050012.

Almost surely, 2^1400200042 is an apocalyptic number.

1400200042 is a deficient number, since it is larger than the sum of its proper divisors (700100024).

1400200042 is an equidigital number, since it uses as much as digits as its factorization.

1400200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700100023.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1400200042 is about 37419.2469459234. The cubic root of 1400200042 is about 1118.7422216327.

Adding to 1400200042 its reverse (2400020041), we get a palindrome (3800220083).

The spelling of 1400200042 in words is "one billion, four hundred million, two hundred thousand, forty-two".