38180985 has 16 divisors (see below), whose sum is σ = 61224000. Its totient is φ = 20318400.

The previous prime is 38180981. The next prime is 38180993. The reversal of 38180985 is 58908183.

It is not a de Polignac number, because 38180985 - 2² = 38180981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38180981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4935 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (3826500).

Almost surely, 2^38180985 is an apocalyptic number.

It is an amenable number.

38180985 is a deficient number, since it is larger than the sum of its proper divisors (23043015).

38180985 is a wasteful number, since it uses less digits than its factorization.

38180985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 38180985 is about 6179.0763872928. The cubic root of 38180985 is about 336.7304386378.

The spelling of 38180985 in words is "thirty-eight million, one hundred eighty thousand, nine hundred eighty-five".