1400042001 has 16 divisors (see below), whose sum is σ = 1938729600. Its totient is φ = 897925248.

The previous prime is 1400041967. The next prime is 1400042003. The reversal of 1400042001 is 1002400041.

It is not a de Polignac number, because 1400042001 - 2⁷ = 1400041873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1400042003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60981 + ... + 80738.

It is an arithmetic number, because the mean of its divisors is an integer number (121170600).

Almost surely, 2^1400042001 is an apocalyptic number.

It is an amenable number.

1400042001 is a deficient number, since it is larger than the sum of its proper divisors (538687599).

1400042001 is a wasteful number, since it uses less digits than its factorization.

1400042001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141848.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1400042001 is about 37417.1351255010. The cubic root of 1400042001 is about 1118.7001291253.

Adding to 1400042001 its reverse (1002400041), we get a palindrome (2402442042).

The spelling of 1400042001 in words is "one billion, four hundred million, forty-two thousand, one".