4240426 has 4 divisors (see below), whose sum is σ = 6360642. Its totient is φ = 2120212.

The previous prime is 4240421. The next prime is 4240433. The reversal of 4240426 is 6240424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4198401 + 42025 = 2049^2 + 205^2 .

It is a super-2 number, since 2×4240426² = 35962425322952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4240397 and 4240406.

It is not an unprimeable number, because it can be changed into a prime (4240421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105 + ... + 1060108.

Almost surely, 2^4240426 is an apocalyptic number.

4240426 is a deficient number, since it is larger than the sum of its proper divisors (2120216).

4240426 is a wasteful number, since it uses less digits than its factorization.

4240426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120215.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4240426 is about 2059.2294675436. The cubic root of 4240426 is about 161.8588670733.

The spelling of 4240426 in words is "four million, two hundred forty thousand, four hundred twenty-six".