401982772 has 12 divisors (see below), whose sum is σ = 740494720. Its totient is φ = 190412856.

The previous prime is 401982769. The next prime is 401982803. The reversal of 401982772 is 277289104.

It is a congruent number.

It is an unprimeable number.

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, 2644548 + ... + 2644699.

Almost surely, 2^401982772 is an apocalyptic number.

It is an amenable number.

401982772 is a deficient number, since it is larger than the sum of its proper divisors (338511948).

401982772 is a wasteful number, since it uses less digits than its factorization.

401982772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289270 (or 5289268 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 401982772 is about 20049.5080238893. The cubic root of 401982772 is about 738.0217260908.

The spelling of 401982772 in words is "four hundred one million, nine hundred eighty-two thousand, seven hundred seventy-two".