401983426 has 16 divisors (see below), whose sum is σ = 651680568. Its totient is φ = 184867200.

The previous prime is 401983409. The next prime is 401983427. The reversal of 401983426 is 624389104.

It can be written as a sum of positive squares in 4 ways, for example, as 268927201 + 133056225 = 16399^2 + 11535^2 .

It is not an unprimeable number, because it can be changed into a prime (401983427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20205 + ... + 34816.

Almost surely, 2^401983426 is an apocalyptic number.

401983426 is a deficient number, since it is larger than the sum of its proper divisors (249697142).

401983426 is a wasteful number, since it uses less digits than its factorization.

401983426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55317.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 401983426 is about 20049.5243335098. The cubic root of 401983426 is about 738.0221263284.

The spelling of 401983426 in words is "four hundred one million, nine hundred eighty-three thousand, four hundred twenty-six".