404148229488 has 160 divisors (see below), whose sum is σ = 1231841157120. Its totient is φ = 126425410560.

The previous prime is 404148229481. The next prime is 404148229489. The reversal of 404148229488 is 884922841404.

404148229488 is a `hidden beast` number, since 40 + 41 + 4 + 82 + 2 + 9 + 488 = 666.

It is a super-2 number, since 2×404148229488² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404148229481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2469073 + ... + 2627663.

It is an arithmetic number, because the mean of its divisors is an integer number (7699007232).

Almost surely, 2^404148229488 is an apocalyptic number.

404148229488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404148229488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615920578560).

404148229488 is an abundant number, since it is smaller than the sum of its proper divisors (827692927632).

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

404148229488 is a wasteful number, since it uses less digits than its factorization.

404148229488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158972 (or 158960 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 404148229488 in words is "four hundred four billion, one hundred forty-eight million, two hundred twenty-nine thousand, four hundred eighty-eight".