2388540 has 144 divisors (see below), whose sum is σ = 8580096. Its totient is φ = 485760.

The previous prime is 2388539. The next prime is 2388557. The reversal of 2388540 is 458832.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2388498 and 2388507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50797 + ... + 50843.

It is an arithmetic number, because the mean of its divisors is an integer number (59584).

2^2388540 is an apocalyptic number.

2388540 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 2388540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4290048).

2388540 is an abundant number, since it is smaller than the sum of its proper divisors (6191556).

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

2388540 is a wasteful number, since it uses less digits than its factorization.

2388540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2388540 is about 1545.4902134921. The cubic root of 2388540 is about 133.6731471027.

It can be divided in two parts, 238 and 8540, that added together give a palindrome (8778).

The spelling of 2388540 in words is "two million, three hundred eighty-eight thousand, five hundred forty".