2435640 has 32 divisors (see below), whose sum is σ = 7307280. Its totient is φ = 649472.

The previous prime is 2435633. The next prime is 2435689. The reversal of 2435640 is 465342.

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

It is a d-powerful number, because it can be written as 2²¹ + 4⁷ + 3¹¹ + 5⁷ + 6⁴ + 4⁸ + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2435640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10029 + ... + 10268.

2^2435640 is an apocalyptic number.

2435640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2435640 is an abundant number, since it is smaller than the sum of its proper divisors (4871640).

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

2435640 is a wasteful number, since it uses less digits than its factorization.

2435640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311 (or 20307 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2435640 is about 1560.6537091873. The cubic root of 2435640 is about 134.5460748804.

The spelling of 2435640 in words is "two million, four hundred thirty-five thousand, six hundred forty".