1405800000 has 504 divisors, whose sum is σ = 5571768384. Its totient is φ = 336000000.

The previous prime is 1405799977. The next prime is 1405800013. The reversal of 1405800000 is 85041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19799965 + ... + 19800035.

It is an arithmetic number, because the mean of its divisors is an integer number (11055096).

Almost surely, 2^1405800000 is an apocalyptic number.

1405800000 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 1405800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2785884192).

1405800000 is an abundant number, since it is smaller than the sum of its proper divisors (4165968384).

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

1405800000 is an equidigital number, since it uses as much as digits as its factorization.

1405800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1405800000 is about 37493.9995199232. Note that the first 3 decimals coincide. The cubic root of 1405800000 is about 1120.2316697633.

Adding to 1405800000 its reverse (85041), we get a palindrome (1405885041).

The spelling of 1405800000 in words is "one billion, four hundred five million, eight hundred thousand".