1802143408 has 40 divisors (see below), whose sum is σ = 3811783808. Its totient is φ = 820357632.

The previous prime is 1802143391. The next prime is 1802143493. The reversal of 1802143408 is 8043412081.

It is a self number, because there is not a number n which added to its sum of digits gives 1802143408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44160 + ... + 74527.

Almost surely, 2^1802143408 is an apocalyptic number.

It is an amenable number.

1802143408 is an abundant number, since it is smaller than the sum of its proper divisors (2009640400).

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

1802143408 is a wasteful number, since it uses less digits than its factorization.

1802143408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118781 (or 118775 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1802143408 is about 42451.6596613136. The cubic root of 1802143408 is about 1216.9230461234.

Adding to 1802143408 its reverse (8043412081), we get a palindrome (9845555489).

The spelling of 1802143408 in words is "one billion, eight hundred two million, one hundred forty-three thousand, four hundred eight".