1802678164 has 96 divisors (see below), whose sum is σ = 4042241280. Its totient is φ = 685504512.

The previous prime is 1802678159. The next prime is 1802678173. The reversal of 1802678164 is 4618762081.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 1802678164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592054 + ... + 595090.

It is an arithmetic number, because the mean of its divisors is an integer number (42106680).

Almost surely, 2^1802678164 is an apocalyptic number.

1802678164 is a gapful number since it is divisible by the number (14) 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 1802678164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021120640).

1802678164 is an abundant number, since it is smaller than the sum of its proper divisors (2239563116).

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

1802678164 is a wasteful number, since it uses less digits than its factorization.

1802678164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1802678164 is about 42457.9576051416. The cubic root of 1802678164 is about 1217.0434014257.

The spelling of 1802678164 in words is "one billion, eight hundred two million, six hundred seventy-eight thousand, one hundred sixty-four".