401428314686 has 16 divisors (see below), whose sum is σ = 704166612864. Its totient is φ = 168039759384.

The previous prime is 401428314667. The next prime is 401428314689. The reversal of 401428314686 is 686413824104.

It is a happy number.

It is a super-2 number, since 2×401428314686² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401428314686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401428314689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333411620 + ... + 333412823.

It is an arithmetic number, because the mean of its divisors is an integer number (44010413304).

Almost surely, 2^401428314686 is an apocalyptic number.

401428314686 is a deficient number, since it is larger than the sum of its proper divisors (302738298178).

401428314686 is a wasteful number, since it uses less digits than its factorization.

401428314686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666824495.

The product of its (nonzero) digits is 884736, while the sum is 47.

The spelling of 401428314686 in words is "four hundred one billion, four hundred twenty-eight million, three hundred fourteen thousand, six hundred eighty-six".