401680975 has 6 divisors (see below), whose sum is σ = 498084440. Its totient is φ = 321344760.

The previous prime is 401680973. The next prime is 401680997. The reversal of 401680975 is 579086104.

It is not a de Polignac number, because 401680975 - 2¹ = 401680973 is a prime.

It is a super-2 number, since 2×401680975² = 322695211353901250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401680973) 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 5 ways as a sum of consecutive naturals, for example, 8033595 + ... + 8033644.

Almost surely, 2^401680975 is an apocalyptic number.

401680975 is a deficient number, since it is larger than the sum of its proper divisors (96403465).

401680975 is a wasteful number, since it uses less digits than its factorization.

401680975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16067249 (or 16067244 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 401680975 is about 20041.9803163260. The cubic root of 401680975 is about 737.8369847519.

The spelling of 401680975 in words is "four hundred one million, six hundred eighty thousand, nine hundred seventy-five".