401640207334 has 32 divisors (see below), whose sum is σ = 632122961184. Its totient is φ = 191226631680.

The previous prime is 401640207313. The next prime is 401640207341. The reversal of 401640207334 is 433702046104.

It is a super-4 number, since 4×401640207334⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 401640207334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254032 + ... + 931564.

It is an arithmetic number, because the mean of its divisors is an integer number (19753842537).

Almost surely, 2^401640207334 is an apocalyptic number.

401640207334 is a deficient number, since it is larger than the sum of its proper divisors (230482753850).

401640207334 is a wasteful number, since it uses less digits than its factorization.

401640207334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677752.

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 401640207334 in words is "four hundred one billion, six hundred forty million, two hundred seven thousand, three hundred thirty-four".