401426 has 4 divisors (see below), whose sum is σ = 602142. Its totient is φ = 200712.

The previous prime is 401417. The next prime is 401473. The reversal of 401426 is 624104.

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., 203401 + 198025 = 451^2 + 445^2 .

It is a super-2 number, since 2×401426² = 322285666952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100355 + ... + 100358.

2⁴⁰¹⁴²⁶ is an apocalyptic number.

401426 is a deficient number, since it is larger than the sum of its proper divisors (200716).

401426 is a wasteful number, since it uses less digits than its factorization.

401426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200715.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 401426 is about 633.5818810541. The cubic root of 401426 is about 73.7680832799.

The spelling of 401426 in words is "four hundred one thousand, four hundred twenty-six".