213065420 has 24 divisors (see below), whose sum is σ = 473757984. Its totient is φ = 80212736.

The previous prime is 213065357. The next prime is 213065431. The reversal of 213065420 is 24560312.

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, 312992 + ... + 313671.

It is an arithmetic number, because the mean of its divisors is an integer number (19739916).

Almost surely, 2^213065420 is an apocalyptic number.

213065420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213065420 is an abundant number, since it is smaller than the sum of its proper divisors (260692564).

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

213065420 is a wasteful number, since it uses less digits than its factorization.

213065420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626689 (or 626687 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 213065420 is about 14596.7605995303. The cubic root of 213065420 is about 597.2703972420.

The spelling of 213065420 in words is "two hundred thirteen million, sixty-five thousand, four hundred twenty".