4067940 has 48 divisors (see below), whose sum is σ = 11491200. Its totient is φ = 1075200.

The previous prime is 4067939. The next prime is 4067951. The reversal of 4067940 is 497604.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4067898 and 4067907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8836 + ... + 9284.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

Almost surely, 2^4067940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4067940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5745600).

4067940 is an abundant number, since it is smaller than the sum of its proper divisors (7423260).

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

4067940 is a wasteful number, since it uses less digits than its factorization.

4067940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 4067940 is about 2016.9134835188. The cubic root of 4067940 is about 159.6337979063.

The spelling of 4067940 in words is "four million, sixty-seven thousand, nine hundred forty".