38649147 has 8 divisors (see below), whose sum is σ = 51652944. Its totient is φ = 25705728.

The previous prime is 38649139. The next prime is 38649179. The reversal of 38649147 is 74194683.

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

It is not a de Polignac number, because 38649147 - 2³ = 38649139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38649099 and 38649108.

It is not an unprimeable number, because it can be changed into a prime (38649197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13578 + ... + 16175.

It is an arithmetic number, because the mean of its divisors is an integer number (6456618).

Almost surely, 2^38649147 is an apocalyptic number.

38649147 is a deficient number, since it is larger than the sum of its proper divisors (13003797).

38649147 is a wasteful number, since it uses less digits than its factorization.

38649147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30189.

The product of its digits is 145152, while the sum is 42.

The square root of 38649147 is about 6216.8438133831. The cubic root of 38649147 is about 338.1011420761.

The spelling of 38649147 in words is "thirty-eight million, six hundred forty-nine thousand, one hundred forty-seven".