805420388 has 24 divisors (see below), whose sum is σ = 1459218432. Its totient is φ = 388736064.

The previous prime is 805420367. The next prime is 805420439. The reversal of 805420388 is 883024508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15620 + ... + 43067.

It is an arithmetic number, because the mean of its divisors is an integer number (60800768).

Almost surely, 2^805420388 is an apocalyptic number.

It is an amenable number.

805420388 is a deficient number, since it is larger than the sum of its proper divisors (653798044).

805420388 is a wasteful number, since it uses less digits than its factorization.

805420388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58811 (or 58809 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 805420388 is about 28379.9293163320. The cubic root of 805420388 is about 930.4096503379.

The spelling of 805420388 in words is "eight hundred five million, four hundred twenty thousand, three hundred eighty-eight".