427426 has 4 divisors (see below), whose sum is σ = 641142. Its totient is φ = 213712.

The previous prime is 427423. The next prime is 427429. The reversal of 427426 is 624724.

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

It is an interprime number because it is at equal distance from previous prime (427423) and next prime (427429).

It can be written as a sum of positive squares in only one way, i.e., 301401 + 126025 = 549^2 + 355^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 427426.

It is not an unprimeable number, because it can be changed into a prime (427421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106855 + ... + 106858.

2⁴²⁷⁴²⁶ is an apocalyptic number.

427426 is a deficient number, since it is larger than the sum of its proper divisors (213716).

427426 is a wasteful number, since it uses less digits than its factorization.

427426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213715.

The product of its digits is 2688, while the sum is 25.

The square root of 427426 is about 653.7782498676. The cubic root of 427426 is about 75.3275158446.

The spelling of 427426 in words is "four hundred twenty-seven thousand, four hundred twenty-six".