2142401406 has 8 divisors (see below), whose sum is σ = 4284802824. Its totient is φ = 714133800.

The previous prime is 2142401383. The next prime is 2142401407. The reversal of 2142401406 is 6041042412.

It is a happy number.

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

2142401406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142401407) 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, 178533445 + ... + 178533456.

It is an arithmetic number, because the mean of its divisors is an integer number (535600353).

Almost surely, 2^2142401406 is an apocalyptic number.

2142401406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142401406 is a wasteful number, since it uses less digits than its factorization.

2142401406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357066906.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2142401406 is about 46286.0822062097. The cubic root of 2142401406 is about 1289.1405861593.

Adding to 2142401406 its reverse (6041042412), we get a palindrome (8183443818).

The spelling of 2142401406 in words is "two billion, one hundred forty-two million, four hundred one thousand, four hundred six".