401659674 has 16 divisors (see below), whose sum is σ = 865113312. Its totient is φ = 123587568.

The previous prime is 401659673. The next prime is 401659723. The reversal of 401659674 is 476956104.

It is a super-2 number, since 2×401659674² = 322660987435572552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401659673) 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 7 ways as a sum of consecutive naturals, for example, 2574664 + ... + 2574819.

It is an arithmetic number, because the mean of its divisors is an integer number (54069582).

Almost surely, 2^401659674 is an apocalyptic number.

401659674 is an abundant number, since it is smaller than the sum of its proper divisors (463453638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401659674 is a wasteful number, since it uses less digits than its factorization.

401659674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149501.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 401659674 is about 20041.4488997178. The cubic root of 401659674 is about 737.8239421099.

The spelling of 401659674 in words is "four hundred one million, six hundred fifty-nine thousand, six hundred seventy-four".