2142001406 has 8 divisors (see below), whose sum is σ = 3281364000. Its totient is φ = 1048213408.

The previous prime is 2142001391. The next prime is 2142001409. The reversal of 2142001406 is 6041002412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142001409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11393531 + ... + 11393718.

It is an arithmetic number, because the mean of its divisors is an integer number (410170500).

Almost surely, 2^2142001406 is an apocalyptic number.

2142001406 is a deficient number, since it is larger than the sum of its proper divisors (1139362594).

2142001406 is a wasteful number, since it uses less digits than its factorization.

2142001406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22787298.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2142001406 is about 46281.7610511960. The cubic root of 2142001406 is about 1289.0603509105.

Adding to 2142001406 its reverse (6041002412), we get a palindrome (8183003818).

The spelling of 2142001406 in words is "two billion, one hundred forty-two million, one thousand, four hundred six".