1406140818 has 8 divisors (see below), whose sum is σ = 2812281648. Its totient is φ = 468713604.

The previous prime is 1406140793. The next prime is 1406140843. The reversal of 1406140818 is 8180416041.

It is an interprime number because it is at equal distance from previous prime (1406140793) and next prime (1406140843).

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

1406140818 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117178396 + ... + 117178407.

It is an arithmetic number, because the mean of its divisors is an integer number (351535206).

Almost surely, 2^1406140818 is an apocalyptic number.

1406140818 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.

1406140818 is a wasteful number, since it uses less digits than its factorization.

1406140818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234356808.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 1406140818 is about 37498.5442117424. The cubic root of 1406140818 is about 1120.3221910010.

Adding to 1406140818 its reverse (8180416041), we get a palindrome (9586556859).

The spelling of 1406140818 in words is "one billion, four hundred six million, one hundred forty thousand, eight hundred eighteen".