2064540 has 48 divisors (see below), whose sum is σ = 6088320. Its totient is φ = 521280.

The previous prime is 2064529. The next prime is 2064547. The reversal of 2064540 is 454602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064547) 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, 235 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (126840).

2^2064540 is an apocalyptic number.

2064540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2064540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044160).

2064540 is an abundant number, since it is smaller than the sum of its proper divisors (4023780).

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

2064540 is a wasteful number, since it uses less digits than its factorization.

2064540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2064540 is about 1436.8507229354. The cubic root of 2064540 is about 127.3330378973. Note that the first 3 decimals are identical.

The spelling of 2064540 in words is "two million, sixty-four thousand, five hundred forty".