396942426 has 24 divisors (see below), whose sum is σ = 860536404. Its totient is φ = 132238080.

The previous prime is 396942421. The next prime is 396942463. The reversal of 396942426 is 624249693.

It can be written as a sum of positive squares in 2 ways, for example, as 346518225 + 50424201 = 18615^2 + 7101^2 .

It is not an unprimeable number, because it can be changed into a prime (396942421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32160 + ... + 42756.

Almost surely, 2^396942426 is an apocalyptic number.

396942426 is an abundant number, since it is smaller than the sum of its proper divisors (463593978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396942426 is a wasteful number, since it uses less digits than its factorization.

396942426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12686 (or 12683 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 396942426 is about 19923.4140146713. The cubic root of 396942426 is about 734.9241293336.

The spelling of 396942426 in words is "three hundred ninety-six million, nine hundred forty-two thousand, four hundred twenty-six".