38478649 has 8 divisors (see below), whose sum is σ = 42046848. Its totient is φ = 34922160.

The previous prime is 38478613. The next prime is 38478653. The reversal of 38478649 is 94687483.

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

It is a cyclic number.

It is not a de Polignac number, because 38478649 - 2¹¹ = 38476601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38478749) 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, 4864 + ... + 10030.

It is an arithmetic number, because the mean of its divisors is an integer number (5255856).

Almost surely, 2^38478649 is an apocalyptic number.

It is an amenable number.

38478649 is a deficient number, since it is larger than the sum of its proper divisors (3568199).

38478649 is a wasteful number, since it uses less digits than its factorization.

38478649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855.

The product of its digits is 1161216, while the sum is 49.

The square root of 38478649 is about 6203.1160717820. The cubic root of 38478649 is about 337.6032393812.

The spelling of 38478649 in words is "thirty-eight million, four hundred seventy-eight thousand, six hundred forty-nine".