2423040 has 72 divisors (see below), whose sum is σ = 7750848. Its totient is φ = 645120.

The previous prime is 2423039. The next prime is 2423041. The reversal of 2423040 is 403242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2423039) and next prime (2423041).

It is a super-2 number, since 2×2423040² = 11742245683200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423041) 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, 3525 + ... + 4155.

2^2423040 is an apocalyptic number.

2423040 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 2423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3875424).

2423040 is an abundant number, since it is smaller than the sum of its proper divisors (5327808).

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

2423040 is an equidigital number, since it uses as much as digits as its factorization.

2423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2423040 is about 1556.6117049541. The cubic root of 2423040 is about 134.3136633713.

Adding to 2423040 its reverse (403242), we get a palindrome (2826282).

The spelling of 2423040 in words is "two million, four hundred twenty-three thousand, forty".