2046640 has 20 divisors (see below), whose sum is σ = 4758624. Its totient is φ = 818624.

The previous prime is 2046637. The next prime is 2046641. The reversal of 2046640 is 466402.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2046641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12712 + ... + 12871.

2^2046640 is an apocalyptic number.

2046640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2046640 is an abundant number, since it is smaller than the sum of its proper divisors (2711984).

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

2046640 is a wasteful number, since it uses less digits than its factorization.

2046640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25596 (or 25590 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2046640 is about 1430.6082622437. The cubic root of 2046640 is about 126.9639677059.

The spelling of 2046640 in words is "two million, forty-six thousand, six hundred forty".