2061440 has 32 divisors (see below), whose sum is σ = 4929660. Its totient is φ = 824320.

The previous prime is 2061431. The next prime is 2061491. The reversal of 2061440 is 441602.

It can be written as a sum of positive squares in 2 ways, for example, as 2050624 + 10816 = 1432^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971 + ... + 2250.

2^2061440 is an apocalyptic number.

2061440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061440 is an abundant number, since it is smaller than the sum of its proper divisors (2868220).

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

2061440 is an equidigital number, since it uses as much as digits as its factorization.

2061440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240 (or 3228 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2061440 is about 1435.7715695750. The cubic root of 2061440 is about 127.2692738704.

The spelling of 2061440 in words is "two million, sixty-one thousand, four hundred forty".