2440012421 has 8 divisors (see below), whose sum is σ = 3042093504. Its totient is φ = 1901308320.

The previous prime is 2440012417. The next prime is 2440012447. The reversal of 2440012421 is 1242100442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2440012421 - 2² = 2440012417 is a prime.

It is a super-2 number, since 2×2440012421² = 11907321229268562482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2440012393 and 2440012402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440012481) 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, 15844160 + ... + 15844313.

It is an arithmetic number, because the mean of its divisors is an integer number (380261688).

Almost surely, 2^2440012421 is an apocalyptic number.

It is an amenable number.

2440012421 is a deficient number, since it is larger than the sum of its proper divisors (602081083).

2440012421 is a wasteful number, since it uses less digits than its factorization.

2440012421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31688491.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2440012421 is about 49396.4818686513. The cubic root of 2440012421 is about 1346.2653838664.

Adding to 2440012421 its reverse (1242100442), we get a palindrome (3682112863).

The spelling of 2440012421 in words is "two billion, four hundred forty million, twelve thousand, four hundred twenty-one".