38609478 has 12 divisors (see below), whose sum is σ = 83653908. Its totient is φ = 12869820.

The previous prime is 38609471. The next prime is 38609491. The reversal of 38609478 is 87490683.

It is a happy number.

38609478 is a `hidden beast` number, since 38 + 609 + 4 + 7 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38609471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072468 + ... + 1072503.

It is an arithmetic number, because the mean of its divisors is an integer number (6971159).

Almost surely, 2^38609478 is an apocalyptic number.

38609478 is an abundant number, since it is smaller than the sum of its proper divisors (45044430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38609478 is a wasteful number, since it uses less digits than its factorization.

38609478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144979 (or 2144976 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 38609478 is about 6213.6525490246. The cubic root of 38609478 is about 337.9854282200.

The spelling of 38609478 in words is "thirty-eight million, six hundred nine thousand, four hundred seventy-eight".