1406641242 has 8 divisors (see below), whose sum is σ = 2813282496. Its totient is φ = 468880412.

The previous prime is 1406641163. The next prime is 1406641297. The reversal of 1406641242 is 2421466041.

It is a happy number.

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

1406641242 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 117220098 + ... + 117220109.

It is an arithmetic number, because the mean of its divisors is an integer number (351660312).

Almost surely, 2^1406641242 is an apocalyptic number.

1406641242 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.

1406641242 is a wasteful number, since it uses less digits than its factorization.

1406641242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234440212.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1406641242 is about 37505.2161972172. The cubic root of 1406641242 is about 1120.4550770796.

The spelling of 1406641242 in words is "one billion, four hundred six million, six hundred forty-one thousand, two hundred forty-two".