982640401 has 4 divisors (see below), whose sum is σ = 984772404. Its totient is φ = 980508400.

The previous prime is 982640359. The next prime is 982640411. The reversal of 982640401 is 104046289.

982640401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268468225 + 714172176 = 16385^2 + 26724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-982640401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (982640411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065310 + ... + 1066231.

It is an arithmetic number, because the mean of its divisors is an integer number (246193101).

Almost surely, 2^982640401 is an apocalyptic number.

It is an amenable number.

982640401 is a deficient number, since it is larger than the sum of its proper divisors (2132003).

982640401 is a wasteful number, since it uses less digits than its factorization.

982640401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132002.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 982640401 is about 31347.0955751885. The cubic root of 982640401 is about 994.1796563236.

The spelling of 982640401 in words is "nine hundred eighty-two million, six hundred forty thousand, four hundred one".