213230934 has 32 divisors (see below), whose sum is σ = 541539840. Its totient is φ = 60923016.

The previous prime is 213230921. The next prime is 213230951. The reversal of 213230934 is 439032312.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 213230898 and 213230907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281674 + ... + 282429.

It is an arithmetic number, because the mean of its divisors is an integer number (16923120).

Almost surely, 2^213230934 is an apocalyptic number.

213230934 is an abundant number, since it is smaller than the sum of its proper divisors (328308906).

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

213230934 is a wasteful number, since it uses less digits than its factorization.

213230934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564121 (or 564115 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 213230934 is about 14602.4290445117. The cubic root of 213230934 is about 597.4250148950.

The spelling of 213230934 in words is "two hundred thirteen million, two hundred thirty thousand, nine hundred thirty-four".