4000548 has 24 divisors (see below), whose sum is σ = 9552928. Its totient is φ = 1302336.

The previous prime is 4000543. The next prime is 4000553. The reversal of 4000548 is 8450004.

It is an interprime number because it is at equal distance from previous prime (4000543) and next prime (4000553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3361 + ... + 4392.

Almost surely, 2^4000548 is an apocalyptic number.

It is an amenable number.

4000548 is an abundant number, since it is smaller than the sum of its proper divisors (5552380).

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

4000548 is a wasteful number, since it uses less digits than its factorization.

4000548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803 (or 7801 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4000548 is about 2000.1369953081. The cubic root of 4000548 is about 158.7473539973.

The spelling of 4000548 in words is "four million, five hundred forty-eight", and thus it is an aban number.