213007860 has 192 divisors, whose sum is σ = 751699200. Its totient is φ = 49641984.

The previous prime is 213007849. The next prime is 213007891. The reversal of 213007860 is 68700312.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132582 + ... + 134178.

It is an arithmetic number, because the mean of its divisors is an integer number (3915100).

Almost surely, 2^213007860 is an apocalyptic number.

213007860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213007860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375849600).

213007860 is an abundant number, since it is smaller than the sum of its proper divisors (538691340).

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

213007860 is a wasteful number, since it uses less digits than its factorization.

213007860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 213007860 is about 14594.7887960052. The cubic root of 213007860 is about 597.2166078466.

The spelling of 213007860 in words is "two hundred thirteen million, seven thousand, eight hundred sixty".