401664148 has 24 divisors (see below), whose sum is σ = 726897920. Its totient is φ = 194002560.

The previous prime is 401664143. The next prime is 401664149. The reversal of 401664148 is 841466104.

It is a super-2 number, since 2×401664148² = 322668175577131808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401664143) 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, 74140 + ... + 79372.

Almost surely, 2^401664148 is an apocalyptic number.

It is an amenable number.

401664148 is a deficient number, since it is larger than the sum of its proper divisors (325233772).

401664148 is a wasteful number, since it uses less digits than its factorization.

401664148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887 (or 5885 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 401664148 is about 20041.5605180834. The cubic root of 401664148 is about 737.8266815867.

The spelling of 401664148 in words is "four hundred one million, six hundred sixty-four thousand, one hundred forty-eight".