4123240 has 32 divisors (see below), whose sum is σ = 10121760. Its totient is φ = 1499200.

The previous prime is 4123211. The next prime is 4123253. The reversal of 4123240 is 423214.

It is a super-2 number, since 2×4123240² = 34002216195200, which contains 22 as substring.

It is an Ulam 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 7 ways as a sum of consecutive naturals, for example, 4246 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (316305).

Almost surely, 2^4123240 is an apocalyptic number.

4123240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4123240 is an abundant number, since it is smaller than the sum of its proper divisors (5998520).

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

4123240 is a wasteful number, since it uses less digits than its factorization.

4123240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393 (or 9389 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4123240 is about 2030.5762728841. The cubic root of 4123240 is about 160.3539041220.

Adding to 4123240 its reverse (423214), we get a palindrome (4546454).

The spelling of 4123240 in words is "four million, one hundred twenty-three thousand, two hundred forty".