820465010 has 16 divisors (see below), whose sum is σ = 1516752216. Its totient is φ = 319315968.

The previous prime is 820465001. The next prime is 820465027. The reversal of 820465010 is 10564028.

It can be written as a sum of positive squares in 4 ways, for example, as 797893009 + 22572001 = 28247^2 + 4751^2 .

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, 1108367 + ... + 1109106.

Almost surely, 2^820465010 is an apocalyptic number.

820465010 is a deficient number, since it is larger than the sum of its proper divisors (696287206).

820465010 is a wasteful number, since it uses less digits than its factorization.

820465010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217517.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 820465010 is about 28643.7604025728. The cubic root of 820465010 is about 936.1670576546.

The spelling of 820465010 in words is "eight hundred twenty million, four hundred sixty-five thousand, ten".