1400042042 has 16 divisors (see below), whose sum is σ = 2433877632. Its totient is φ = 591566640.

The previous prime is 1400042041. The next prime is 1400042071. The reversal of 1400042042 is 2402400041.

1400042042 is a modest number, since divided by 42042 gives 1400 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1400042042.

It is not an unprimeable number, because it can be changed into a prime (1400042041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703253 + ... + 705240.

It is an arithmetic number, because the mean of its divisors is an integer number (152117352).

Almost surely, 2^1400042042 is an apocalyptic number.

1400042042 is a deficient number, since it is larger than the sum of its proper divisors (1033835590).

1400042042 is a wasteful number, since it uses less digits than its factorization.

1400042042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408573.

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

The square root of 1400042042 is about 37417.1356733783. The cubic root of 1400042042 is about 1118.7001400456.

Adding to 1400042042 its reverse (2402400041), we get a palindrome (3802442083).

The spelling of 1400042042 in words is "one billion, four hundred million, forty-two thousand, forty-two".