2154726 has 48 divisors (see below), whose sum is σ = 5460000. Its totient is φ = 613872.

The previous prime is 2154707. The next prime is 2154727. The reversal of 2154726 is 6274512.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2154726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6000 + ... + 6348.

It is an arithmetic number, because the mean of its divisors is an integer number (113750).

2^2154726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730000).

2154726 is an abundant number, since it is smaller than the sum of its proper divisors (3305274).

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

2154726 is a wasteful number, since it uses less digits than its factorization.

2154726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 361 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2154726 is about 1467.8984978533. The cubic root of 2154726 is about 129.1607874304.

The spelling of 2154726 in words is "two million, one hundred fifty-four thousand, seven hundred twenty-six".