102406462020 has 36 divisors (see below), whose sum is σ = 310632935340. Its totient is φ = 27308389824.

The previous prime is 102406462009. The next prime is 102406462021. The reversal of 102406462020 is 20264604201.

102406462020 is a `hidden beast` number, since 10 + 2 + 4 + 0 + 6 + 4 + 620 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46317065796 + 56089396224 = 215214^2 + 236832^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (102406462021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284462215 + ... + 284462574.

Almost surely, 2^102406462020 is an apocalyptic number.

102406462020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102406462020 is an abundant number, since it is smaller than the sum of its proper divisors (208226473320).

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

102406462020 is a wasteful number, since it uses less digits than its factorization.

102406462020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568924804 (or 568924799 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 102406462020 in words is "one hundred two billion, four hundred six million, four hundred sixty-two thousand, twenty".