662426 has 4 divisors (see below), whose sum is σ = 993642. Its totient is φ = 331212.

The previous prime is 662407. The next prime is 662443. The reversal of 662426 is 624266.

662426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 638401 + 24025 = 799^2 + 155^2 .

It is a junction number, because it is equal to n+sod(n) for n = 662395 and 662404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165605 + ... + 165608.

2⁶⁶²⁴²⁶ is an apocalyptic number.

662426 is a deficient number, since it is larger than the sum of its proper divisors (331216).

662426 is a wasteful number, since it uses less digits than its factorization.

662426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331215.

The product of its digits is 3456, while the sum is 26.

The square root of 662426 is about 813.8955706969. The cubic root of 662426 is about 87.1724241564.

The spelling of 662426 in words is "six hundred sixty-two thousand, four hundred twenty-six".