213394100 has 36 divisors (see below), whose sum is σ = 472928064. Its totient is φ = 83539680.

The previous prime is 213394099. The next prime is 213394109. The reversal of 213394100 is 1493312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213394109) 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, 18002 + ... + 27401.

Almost surely, 2^213394100 is an apocalyptic number.

213394100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213394100 is an abundant number, since it is smaller than the sum of its proper divisors (259533964).

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

213394100 is a wasteful number, since it uses less digits than its factorization.

213394100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45464 (or 45457 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 213394100 is about 14608.0149233221. The cubic root of 213394100 is about 597.5773608277.

The spelling of 213394100 in words is "two hundred thirteen million, three hundred ninety-four thousand, one hundred".