1808082450 has 72 divisors (see below), whose sum is σ = 4926220416. Its totient is φ = 475356000.

The previous prime is 1808082449. The next prime is 1808082487. The reversal of 1808082450 is 542808081.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3655 + ... + 60245.

It is an arithmetic number, because the mean of its divisors is an integer number (68419728).

Almost surely, 2^1808082450 is an apocalyptic number.

1808082450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808082450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2463110208).

1808082450 is an abundant number, since it is smaller than the sum of its proper divisors (3118137966).

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

1808082450 is a wasteful number, since it uses less digits than its factorization.

1808082450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56680 (or 56672 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 1808082450 is about 42521.5527703305. The cubic root of 1808082450 is about 1218.2583879164.

The spelling of 1808082450 in words is "one billion, eight hundred eight million, eighty-two thousand, four hundred fifty".