38145646 has 32 divisors (see below), whose sum is σ = 72421632. Its totient is φ = 14636160.

The previous prime is 38145641. The next prime is 38145647. The reversal of 38145646 is 64654183.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38145641) 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, 8470 + ... + 12166.

It is an arithmetic number, because the mean of its divisors is an integer number (2263176).

Almost surely, 2^38145646 is an apocalyptic number.

38145646 is a deficient number, since it is larger than the sum of its proper divisors (34275986).

38145646 is a wasteful number, since it uses less digits than its factorization.

38145646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784.

The product of its digits is 69120, while the sum is 37.

The square root of 38145646 is about 6176.2161555438. The cubic root of 38145646 is about 336.6265178844.

The spelling of 38145646 in words is "thirty-eight million, one hundred forty-five thousand, six hundred forty-six".