38685210 has 32 divisors (see below), whose sum is σ = 95841792. Its totient is φ = 9983040.

The previous prime is 38685209. The next prime is 38685253. The reversal of 38685210 is 1258683.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19869 + ... + 21728.

It is an arithmetic number, because the mean of its divisors is an integer number (2995056).

Almost surely, 2^38685210 is an apocalyptic number.

38685210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38685210 is an abundant number, since it is smaller than the sum of its proper divisors (57156582).

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

38685210 is a wasteful number, since it uses less digits than its factorization.

38685210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41638.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 38685210 is about 6219.7435638457. The cubic root of 38685210 is about 338.2062685971.

The spelling of 38685210 in words is "thirty-eight million, six hundred eighty-five thousand, two hundred ten".