213788435 has 32 divisors (see below), whose sum is σ = 304680960. Its totient is φ = 140902272.

The previous prime is 213788411. The next prime is 213788441. The reversal of 213788435 is 534887312.

It is a de Polignac number, because none of the positive numbers 2^k-213788435 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213788392 and 213788401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351902 + ... + 352508.

It is an arithmetic number, because the mean of its divisors is an integer number (9521280).

Almost surely, 2^213788435 is an apocalyptic number.

213788435 is a deficient number, since it is larger than the sum of its proper divisors (90892525).

213788435 is a wasteful number, since it uses less digits than its factorization.

213788435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 161280, while the sum is 41.

The square root of 213788435 is about 14621.5059073954. The cubic root of 213788435 is about 597.9452258343.

The spelling of 213788435 in words is "two hundred thirteen million, seven hundred eighty-eight thousand, four hundred thirty-five".