401330236 has 12 divisors (see below), whose sum is σ = 739292680. Its totient is φ = 190103760.

The previous prime is 401330221. The next prime is 401330239. The reversal of 401330236 is 632033104.

It is a super-2 number, since 2×401330236² = 322131916655631392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401330239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2640255 + ... + 2640406.

Almost surely, 2^401330236 is an apocalyptic number.

It is an amenable number.

401330236 is a deficient number, since it is larger than the sum of its proper divisors (337962444).

401330236 is a wasteful number, since it uses less digits than its factorization.

401330236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280684 (or 5280682 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 401330236 is about 20033.2282970070. The cubic root of 401330236 is about 737.6221678685.

The spelling of 401330236 in words is "four hundred one million, three hundred thirty thousand, two hundred thirty-six".