4006940 has 24 divisors (see below), whose sum is σ = 9616992. Its totient is φ = 1373760.

The previous prime is 4006939. The next prime is 4006957. The reversal of 4006940 is 496004.

It is a congruent number.

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, 14171 + ... + 14450.

It is an arithmetic number, because the mean of its divisors is an integer number (400708).

Almost surely, 2^4006940 is an apocalyptic number.

It is an amenable number.

4006940 is an abundant number, since it is smaller than the sum of its proper divisors (5610052).

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

4006940 is a wasteful number, since it uses less digits than its factorization.

4006940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28637 (or 28635 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4006940 is about 2001.7342480959. The cubic root of 4006940 is about 158.8318568484.

The spelling of 4006940 in words is "four million, six thousand, nine hundred forty".