38285478 has 96 divisors (see below), whose sum is σ = 108006912. Its totient is φ = 9504000.

The previous prime is 38285477. The next prime is 38285483. The reversal of 38285478 is 87458283.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38285473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31278 + ... + 32478.

It is an arithmetic number, because the mean of its divisors is an integer number (1125072).

Almost surely, 2^38285478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38285478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54003456).

38285478 is an abundant number, since it is smaller than the sum of its proper divisors (69721434).

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

38285478 is a wasteful number, since it uses less digits than its factorization.

38285478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1247 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 38285478 is about 6187.5259999454. The cubic root of 38285478 is about 337.0373446685.

The spelling of 38285478 in words is "thirty-eight million, two hundred eighty-five thousand, four hundred seventy-eight".