1416865840 has 40 divisors (see below), whose sum is σ = 3547616688. Its totient is φ = 523150080.

The previous prime is 1416865831. The next prime is 1416865841. The reversal of 1416865840 is 485686141.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1416865841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680146 + ... + 682225.

Almost surely, 2^1416865840 is an apocalyptic number.

1416865840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1416865840 is an abundant number, since it is smaller than the sum of its proper divisors (2130750848).

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

1416865840 is a wasteful number, since it uses less digits than its factorization.

1416865840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362397 (or 1362391 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1416865840 is about 37641.2784054952. The cubic root of 1416865840 is about 1123.1633148125.

It can be divided in two parts, 14168 and 65840, that added together give a palindrome (80008).

The spelling of 1416865840 in words is "one billion, four hundred sixteen million, eight hundred sixty-five thousand, eight hundred forty".