4000048 has 20 divisors (see below), whose sum is σ = 8346688. Its totient is φ = 1846080.

The previous prime is 4000043. The next prime is 4000063. The reversal of 4000048 is 8400004.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 3999995 and 4000040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9408 + ... + 9823.

Almost surely, 2^4000048 is an apocalyptic number.

It is an amenable number.

4000048 is an abundant number, since it is smaller than the sum of its proper divisors (4346640).

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

4000048 is a wasteful number, since it uses less digits than its factorization.

4000048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19252 (or 19246 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4000048 is about 2000.0119999640. The cubic root of 4000048 is about 158.7407401547.

The spelling of 4000048 in words is "four million, forty-eight", and thus it is an aban number.