213673420 has 24 divisors (see below), whose sum is σ = 451995264. Its totient is φ = 84844416.

The previous prime is 213673417. The next prime is 213673477. The reversal of 213673420 is 24376312.

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, 36252 + ... + 41731.

It is an arithmetic number, because the mean of its divisors is an integer number (18833136).

Almost surely, 2^213673420 is an apocalyptic number.

213673420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213673420 is an abundant number, since it is smaller than the sum of its proper divisors (238321844).

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

213673420 is a wasteful number, since it uses less digits than its factorization.

213673420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78129 (or 78127 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 213673420 is about 14617.5723018564. The cubic root of 213673420 is about 597.8379780518.

The spelling of 213673420 in words is "two hundred thirteen million, six hundred seventy-three thousand, four hundred twenty".