388478 has 4 divisors (see below), whose sum is σ = 582720. Its totient is φ = 194238.

The previous prime is 388477. The next prime is 388481. The reversal of 388478 is 874883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874883 = 359 ⋅2437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97118 + ... + 97121.

It is an arithmetic number, because the mean of its divisors is an integer number (145680).

2³⁸⁸⁴⁷⁸ is an apocalyptic number.

388478 is a deficient number, since it is larger than the sum of its proper divisors (194242).

388478 is a wasteful number, since it uses less digits than its factorization.

388478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194241.

The product of its digits is 43008, while the sum is 38.

The square root of 388478 is about 623.2800333718. The cubic root of 388478 is about 72.9662695235.

The spelling of 388478 in words is "three hundred eighty-eight thousand, four hundred seventy-eight".