820578350 has 12 divisors (see below), whose sum is σ = 1526275824. Its totient is φ = 328231320.

The previous prime is 820578347. The next prime is 820578371. The reversal of 820578350 is 53875028.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8205734 + ... + 8205833.

It is an arithmetic number, because the mean of its divisors is an integer number (127189652).

Almost surely, 2^820578350 is an apocalyptic number.

820578350 is a deficient number, since it is larger than the sum of its proper divisors (705697474).

820578350 is a wasteful number, since it uses less digits than its factorization.

820578350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16411579 (or 16411574 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 820578350 is about 28645.7387756015. The cubic root of 820578350 is about 936.2101634087.

The spelling of 820578350 in words is "eight hundred twenty million, five hundred seventy-eight thousand, three hundred fifty".