2642388 has 48 divisors (see below), whose sum is σ = 7150080. Its totient is φ = 743904.

The previous prime is 2642383. The next prime is 2642389. The reversal of 2642388 is 8832462.

2642388 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642383) 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, 6783 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

2^2642388 is an apocalyptic number.

2642388 is a gapful number since it is divisible by the number (28) 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 2642388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3575040).

2642388 is an abundant number, since it is smaller than the sum of its proper divisors (4507692).

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

2642388 is a wasteful number, since it uses less digits than its factorization.

2642388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 474 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 2642388 is about 1625.5423710257. The cubic root of 2642388 is about 138.2501239880.

The spelling of 2642388 in words is "two million, six hundred forty-two thousand, three hundred eighty-eight".