1400212856 has 16 divisors (see below), whose sum is σ = 3000456240. Its totient is φ = 600091200.

The previous prime is 1400212819. The next prime is 1400212897. The reversal of 1400212856 is 6582120041.

It is a congruent 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, 12501845 + ... + 12501956.

It is an arithmetic number, because the mean of its divisors is an integer number (187528515).

Almost surely, 2^1400212856 is an apocalyptic number.

It is an amenable number.

1400212856 is an abundant number, since it is smaller than the sum of its proper divisors (1600243384).

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

1400212856 is a wasteful number, since it uses less digits than its factorization.

1400212856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25003814 (or 25003810 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1400212856 is about 37419.4181675771. The cubic root of 1400212856 is about 1118.7456343639.

Adding to 1400212856 its reverse (6582120041), we get a palindrome (7982332897).

The spelling of 1400212856 in words is "one billion, four hundred million, two hundred twelve thousand, eight hundred fifty-six".