401466501 has 6 divisors (see below), whose sum is σ = 579896070. Its totient is φ = 267644328.

The previous prime is 401466397. The next prime is 401466521. The reversal of 401466501 is 105664104.

401466501 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 6 + 650 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 221235876 + 180230625 = 14874^2 + 13425^2 .

It is a de Polignac number, because none of the positive numbers 2^k-401466501 is a prime.

It is a super-2 number, since 2×401466501² = 322350702850366002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401466521) 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, 22303686 + ... + 22303703.

It is an arithmetic number, because the mean of its divisors is an integer number (96649345).

Almost surely, 2^401466501 is an apocalyptic number.

It is an amenable number.

401466501 is a deficient number, since it is larger than the sum of its proper divisors (178429569).

401466501 is a wasteful number, since it uses less digits than its factorization.

401466501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44607395 (or 44607392 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 401466501 is about 20036.6289829402. The cubic root of 401466501 is about 737.7056408641.

The spelling of 401466501 in words is "four hundred one million, four hundred sixty-six thousand, five hundred one".