2440540426 has 4 divisors (see below), whose sum is σ = 3660810642. Its totient is φ = 1220270212.

The previous prime is 2440540409. The next prime is 2440540447. The reversal of 2440540426 is 6240450442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6240450442 = 2 ⋅3120225221.

It can be written as a sum of positive squares in only one way, i.e., 2209470025 + 231070401 = 47005^2 + 15201^2 .

It is a super-2 number, since 2×2440540426² = 11912475141880522952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610135105 + ... + 610135108.

Almost surely, 2^2440540426 is an apocalyptic number.

2440540426 is a deficient number, since it is larger than the sum of its proper divisors (1220270216).

2440540426 is a wasteful number, since it uses less digits than its factorization.

2440540426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220270215.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 2440540426 is about 49401.8261403361. The cubic root of 2440540426 is about 1346.3624849550.

Adding to 2440540426 its reverse (6240450442), we get a palindrome (8680990868).

The spelling of 2440540426 in words is "two billion, four hundred forty million, five hundred forty thousand, four hundred twenty-six".