1813408002 has 24 divisors (see below), whose sum is σ = 4490343936. Its totient is φ = 518116536.

The previous prime is 1813408001. The next prime is 1813408007. The reversal of 1813408002 is 2008043181.

It is not an unprimeable number, because it can be changed into a prime (1813408001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7195938 + ... + 7196189.

It is an arithmetic number, because the mean of its divisors is an integer number (187097664).

Almost surely, 2^1813408002 is an apocalyptic number.

1813408002 is an abundant number, since it is smaller than the sum of its proper divisors (2676935934).

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

1813408002 is a wasteful number, since it uses less digits than its factorization.

1813408002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392142 (or 14392139 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1813408002 is about 42584.1285222558. The cubic root of 1813408002 is about 1219.4533074194.

The spelling of 1813408002 in words is "one billion, eight hundred thirteen million, four hundred eight thousand, two".