401641488 has 30 divisors (see below), whose sum is σ = 1124038734. Its totient is φ = 133880448.

The previous prime is 401641481. The next prime is 401641517. The reversal of 401641488 is 884146104.

401641488 is a `hidden beast` number, since 4 + 0 + 1 + 641 + 4 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 359026704 + 42614784 = 18948^2 + 6528^2 .

It is a super-2 number, since 2×401641488² = 322631769765708288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (401641481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1394445 + ... + 1394732.

Almost surely, 2^401641488 is an apocalyptic number.

401641488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

401641488 is an abundant number, since it is smaller than the sum of its proper divisors (722397246).

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

401641488 is a wasteful number, since it uses less digits than its factorization.

401641488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789191 (or 2789182 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 401641488 is about 20040.9951848704. The cubic root of 401641488 is about 737.8128064233.

The spelling of 401641488 in words is "four hundred one million, six hundred forty-one thousand, four hundred eighty-eight".