2061456 has 40 divisors (see below), whose sum is σ = 5413344. Its totient is φ = 675840.

The previous prime is 2061431. The next prime is 2061491. The reversal of 2061456 is 6541602.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896 + ... + 3536.

2^2061456 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 2061456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2706672).

2061456 is an abundant number, since it is smaller than the sum of its proper divisors (3351888).

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

2061456 is a wasteful number, since it uses less digits than its factorization.

2061456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2061456 is about 1435.7771414812. Note that the first 3 decimals coincide. The cubic root of 2061456 is about 127.2696031391.

The spelling of 2061456 in words is "two million, sixty-one thousand, four hundred fifty-six".