401982799 has 8 divisors (see below), whose sum is σ = 444134880. Its totient is φ = 361886976.

The previous prime is 401982769. The next prime is 401982803. The reversal of 401982799 is 997289104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401982799 - 2⁷ = 401982671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401982709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513654 + ... + 514435.

It is an arithmetic number, because the mean of its divisors is an integer number (55516860).

Almost surely, 2^401982799 is an apocalyptic number.

401982799 is a deficient number, since it is larger than the sum of its proper divisors (42152081).

401982799 is a wasteful number, since it uses less digits than its factorization.

401982799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028129.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 401982799 is about 20049.5086972225. The cubic root of 401982799 is about 738.0217426143.

The spelling of 401982799 in words is "four hundred one million, nine hundred eighty-two thousand, seven hundred ninety-nine".