420129086 has 16 divisors (see below), whose sum is σ = 708178464. Its totient is φ = 185474784.

The previous prime is 420129079. The next prime is 420129113. The reversal of 420129086 is 680921024.

It is a Curzon number.

It is a congruent number.

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, 350681 + ... + 351876.

It is an arithmetic number, because the mean of its divisors is an integer number (44261154).

Almost surely, 2^420129086 is an apocalyptic number.

420129086 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

420129086 is a deficient number, since it is larger than the sum of its proper divisors (288049378).

420129086 is a wasteful number, since it uses less digits than its factorization.

420129086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702595.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 420129086 is about 20497.0506658885. The cubic root of 420129086 is about 748.9639537662.

The spelling of 420129086 in words is "four hundred twenty million, one hundred twenty-nine thousand, eighty-six".