1402004042 has 16 divisors (see below), whose sum is σ = 2227700232. Its totient is φ = 659473920.

The previous prime is 1402004041. The next prime is 1402004057. The reversal of 1402004042 is 2404002041.

It can be written as a sum of positive squares in 4 ways, for example, as 1391961481 + 10042561 = 37309^2 + 3169^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1402004042.

It is not an unprimeable number, because it can be changed into a prime (1402004041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81692 + ... + 97352.

Almost surely, 2^1402004042 is an apocalyptic number.

1402004042 is a deficient number, since it is larger than the sum of its proper divisors (825696190).

1402004042 is a wasteful number, since it uses less digits than its factorization.

1402004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1402004042 is about 37443.3444286164. The cubic root of 1402004042 is about 1119.2224732114. Note that the first 3 decimals are identical.

Adding to 1402004042 its reverse (2404002041), we get a palindrome (3806006083).

The spelling of 1402004042 in words is "one billion, four hundred two million, four thousand, forty-two".