820006352 has 30 divisors (see below), whose sum is σ = 1746329634. Its totient is φ = 372729280.

The previous prime is 820006303. The next prime is 820006379. The reversal of 820006352 is 253600028.

It can be written as a sum of positive squares in only one way, i.e., 807923776 + 12082576 = 28424^2 + 3476^2 .

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, 209843 + ... + 213714.

Almost surely, 2^820006352 is an apocalyptic number.

It is an amenable number.

820006352 is an abundant number, since it is smaller than the sum of its proper divisors (926323282).

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

820006352 is a wasteful number, since it uses less digits than its factorization.

820006352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423587 (or 423570 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 820006352 is about 28635.7530370689. The cubic root of 820006352 is about 935.9925791410.

The spelling of 820006352 in words is "eight hundred twenty million, six thousand, three hundred fifty-two".