401612168 has 8 divisors (see below), whose sum is σ = 753022830. Its totient is φ = 200806080.

The previous prime is 401612143. The next prime is 401612191. The reversal of 401612168 is 861216104.

It can be written as a sum of positive squares in only one way, i.e., 231100804 + 170511364 = 15202^2 + 13058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×401612168² = 322584666971320448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401612168.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25100753 + ... + 25100768.

Almost surely, 2^401612168 is an apocalyptic number.

It is an amenable number.

401612168 is a deficient number, since it is larger than the sum of its proper divisors (351410662).

401612168 is a wasteful number, since it uses less digits than its factorization.

401612168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50201527 (or 50201523 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 401612168 is about 20040.2636709201. The cubic root of 401612168 is about 737.7948524365.

The spelling of 401612168 in words is "four hundred one million, six hundred twelve thousand, one hundred sixty-eight".