1411638440 has 64 divisors (see below), whose sum is σ = 3358368000. Its totient is φ = 532535040.

The previous prime is 1411638433. The next prime is 1411638463. The reversal of 1411638440 is 448361141.

It is a junction number, because it is equal to n+sod(n) for n = 1411638397 and 1411638406.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 169985 + ... + 178095.

It is an arithmetic number, because the mean of its divisors is an integer number (52474500).

Almost surely, 2^1411638440 is an apocalyptic number.

1411638440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1411638440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679184000).

1411638440 is an abundant number, since it is smaller than the sum of its proper divisors (1946729560).

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

1411638440 is a wasteful number, since it uses less digits than its factorization.

1411638440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370 (or 8366 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1411638440 is about 37571.7771738309. Note that the first 3 decimals coincide. The cubic root of 1411638440 is about 1121.7803423781.

Adding to 1411638440 its reverse (448361141), we get a palindrome (1859999581).

The spelling of 1411638440 in words is "one billion, four hundred eleven million, six hundred thirty-eight thousand, four hundred forty".