4002726 has 32 divisors (see below), whose sum is σ = 9854208. Its totient is φ = 1055520.

The previous prime is 4002721. The next prime is 4002727. The reversal of 4002726 is 6272004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3120 + ... + 4211.

It is an arithmetic number, because the mean of its divisors is an integer number (307944).

Almost surely, 2^4002726 is an apocalyptic number.

4002726 is an abundant number, since it is smaller than the sum of its proper divisors (5851482).

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

4002726 is a wasteful number, since it uses less digits than its factorization.

4002726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 4002726 is about 2000.6813839290. The cubic root of 4002726 is about 158.7761574687.

The spelling of 4002726 in words is "four million, two thousand, seven hundred twenty-six".