2423540 has 36 divisors (see below), whose sum is σ = 5922756. Its totient is φ = 830592.

The previous prime is 2423539. The next prime is 2423563. The reversal of 2423540 is 453242.

It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 1073296 = 1162^2 + 1036^2 .

It is a super-3 number, since 3×2423540³ = 42704321975333592000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (164521).

2^2423540 is an apocalyptic number.

2423540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2423540 is an abundant number, since it is smaller than the sum of its proper divisors (3499216).

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

2423540 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 2423540 = (4503422)₉.

2423540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2423540 is about 1556.7723019119. The cubic root of 2423540 is about 134.3229013827.

Adding to 2423540 its reverse (453242), we get a palindrome (2876782).

The spelling of 2423540 in words is "two million, four hundred twenty-three thousand, five hundred forty".