4047930 has 48 divisors (see below), whose sum is σ = 10791144. Its totient is φ = 1052160.

The previous prime is 4047929. The next prime is 4047961. The reversal of 4047930 is 397404.

It can be written as a sum of positive squares in 4 ways, for example, as 1734489 + 2313441 = 1317^2 + 1521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4047894 and 4047903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3142 + ... + 4238.

Almost surely, 2^4047930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4047930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5395572).

4047930 is an abundant number, since it is smaller than the sum of its proper divisors (6743214).

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

4047930 is a wasteful number, since it uses less digits than its factorization.

4047930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 4047930 is about 2011.9468183826. The cubic root of 4047930 is about 159.3716239193.

The spelling of 4047930 in words is "four million, forty-seven thousand, nine hundred thirty".