214785538 has 16 divisors (see below), whose sum is σ = 369966240. Its totient is φ = 92491200.

The previous prime is 214785509. The next prime is 214785539. The reversal of 214785538 is 835587412.

It is a super-2 number, since 2×214785538² = 92265654667898888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214785494 and 214785503.

It is not an unprimeable number, because it can be changed into a prime (214785539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256503 + ... + 257338.

It is an arithmetic number, because the mean of its divisors is an integer number (23122890).

Almost surely, 2^214785538 is an apocalyptic number.

214785538 is a deficient number, since it is larger than the sum of its proper divisors (155180702).

214785538 is a wasteful number, since it uses less digits than its factorization.

214785538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513873.

The product of its digits is 268800, while the sum is 43.

The square root of 214785538 is about 14655.5633805050. The cubic root of 214785538 is about 598.8733840330.

The spelling of 214785538 in words is "two hundred fourteen million, seven hundred eighty-five thousand, five hundred thirty-eight".