4000956 has 24 divisors (see below), whose sum is σ = 9658320. Its totient is φ = 1287552.

The previous prime is 4000951. The next prime is 4000957. The reversal of 4000956 is 6590004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000951) 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, 5401 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (402430).

Almost surely, 2^4000956 is an apocalyptic number.

It is an amenable number.

4000956 is an abundant number, since it is smaller than the sum of its proper divisors (5657364).

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

4000956 is a wasteful number, since it uses less digits than its factorization.

4000956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11533 (or 11531 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 4000956 is about 2000.2389857215. The cubic root of 4000956 is about 158.7527504845.

The spelling of 4000956 in words is "four million, nine hundred fifty-six", and thus it is an aban number.