2652440 has 32 divisors (see below), whose sum is σ = 6821280. Its totient is φ = 909312.

The previous prime is 2652439. The next prime is 2652443. The reversal of 2652440 is 442562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2652443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4457 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (213165).

2^2652440 is an apocalyptic number.

2652440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2652440 is an abundant number, since it is smaller than the sum of its proper divisors (4168840).

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

2652440 is a wasteful number, since it uses less digits than its factorization.

2652440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491 (or 9487 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2652440 is about 1628.6313272193. The cubic root of 2652440 is about 138.4252095257.

The spelling of 2652440 in words is "two million, six hundred fifty-two thousand, four hundred forty".