209054834 has 8 divisors (see below), whose sum is σ = 330086640. Its totient is φ = 99025956.

The previous prime is 209054821. The next prime is 209054837. The reversal of 209054834 is 438450902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 209054794 and 209054803.

It is not an unprimeable number, because it can be changed into a prime (209054837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750684 + ... + 2750759.

It is an arithmetic number, because the mean of its divisors is an integer number (41260830).

Almost surely, 2^209054834 is an apocalyptic number.

209054834 is a deficient number, since it is larger than the sum of its proper divisors (121031806).

209054834 is a wasteful number, since it uses less digits than its factorization.

209054834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501464.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 209054834 is about 14458.7286439714. The cubic root of 209054834 is about 593.4991091581.

The spelling of 209054834 in words is "two hundred nine million, fifty-four thousand, eight hundred thirty-four".