401488 has 20 divisors (see below), whose sum is σ = 812448. Its totient is φ = 191840.

The previous prime is 401477. The next prime is 401507. The reversal of 401488 is 884104.

It is a super-2 number, since 2×401488² = 322385228288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

401488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178 + ... + 913.

2⁴⁰¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

401488 is an abundant number, since it is smaller than the sum of its proper divisors (410960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401488 is a wasteful number, since it uses less digits than its factorization.

401488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 401488 is about 633.6308073318. The cubic root of 401488 is about 73.7718808962.

The spelling of 401488 in words is "four hundred one thousand, four hundred eighty-eight".