808144380 has 72 divisors (see below), whose sum is σ = 2517645312. Its totient is φ = 209678976.

The previous prime is 808144369. The next prime is 808144387. The reversal of 808144380 is 83441808.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808144387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54012 + ... + 67331.

It is an arithmetic number, because the mean of its divisors is an integer number (34967296).

Almost surely, 2^808144380 is an apocalyptic number.

It is an amenable number.

808144380 is an abundant number, since it is smaller than the sum of its proper divisors (1709500932).

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

808144380 is a wasteful number, since it uses less digits than its factorization.

808144380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121395 (or 121390 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 808144380 is about 28427.8803290010. The cubic root of 808144380 is about 931.4573750746.

The spelling of 808144380 in words is "eight hundred eight million, one hundred forty-four thousand, three hundred eighty".