38478020 has 24 divisors (see below), whose sum is σ = 92347584. Its totient is φ = 13192416.

The previous prime is 38478017. The next prime is 38478047. The reversal of 38478020 is 2087483.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137282 + ... + 137561.

It is an arithmetic number, because the mean of its divisors is an integer number (3847816).

Almost surely, 2^38478020 is an apocalyptic number.

It is an amenable number.

38478020 is an abundant number, since it is smaller than the sum of its proper divisors (53869564).

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

38478020 is a wasteful number, since it uses less digits than its factorization.

38478020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274859 (or 274857 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 38478020 is about 6203.0653712499. The cubic root of 38478020 is about 337.6013998018.

The spelling of 38478020 in words is "thirty-eight million, four hundred seventy-eight thousand, twenty".