1813401702 has 48 divisors (see below), whose sum is σ = 4687711920. Its totient is φ = 518114016.

The previous prime is 1813401661. The next prime is 1813401721. The reversal of 1813401702 is 2071043181.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 340023 + ... + 345314.

It is an arithmetic number, because the mean of its divisors is an integer number (97660665).

Almost surely, 2^1813401702 is an apocalyptic number.

1813401702 is an abundant number, since it is smaller than the sum of its proper divisors (2874310218).

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

1813401702 is a wasteful number, since it uses less digits than its factorization.

1813401702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685362 (or 685349 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1813401702 is about 42584.0545509701. The cubic root of 1813401702 is about 1219.4518952414.

Adding to 1813401702 its reverse (2071043181), we get a palindrome (3884444883).

The spelling of 1813401702 in words is "one billion, eight hundred thirteen million, four hundred one thousand, seven hundred two".