38402165 has 8 divisors (see below), whose sum is σ = 46600920. Its totient is φ = 30376192.

The previous prime is 38402159. The next prime is 38402179. The reversal of 38402165 is 56120483.

It can be written as a sum of positive squares in 4 ways, for example, as 628849 + 37773316 = 793^2 + 6146^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38402165 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42704 + ... + 43593.

It is an arithmetic number, because the mean of its divisors is an integer number (5825115).

Almost surely, 2^38402165 is an apocalyptic number.

It is an amenable number.

38402165 is a deficient number, since it is larger than the sum of its proper divisors (8198755).

38402165 is an equidigital number, since it uses as much as digits as its factorization.

38402165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86391.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 38402165 is about 6196.9480391560. The cubic root of 38402165 is about 337.3794063895.

The spelling of 38402165 in words is "thirty-eight million, four hundred two thousand, one hundred sixty-five".