404021101302 has 72 divisors (see below), whose sum is σ = 1096628734656. Its totient is φ = 106555012704.

The previous prime is 404021101283. The next prime is 404021101307. The reversal of 404021101302 is 203101120404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404021101307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17606758 + ... + 17629689.

It is an arithmetic number, because the mean of its divisors is an integer number (15230954648).

Almost surely, 2^404021101302 is an apocalyptic number.

404021101302 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

404021101302 is an abundant number, since it is smaller than the sum of its proper divisors (692607633354).

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

404021101302 is a wasteful number, since it uses less digits than its factorization.

404021101302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35236482 (or 35236472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 404021101302 its reverse (203101120404), we get a palindrome (607122221706).

The spelling of 404021101302 in words is "four hundred four billion, twenty-one million, one hundred one thousand, three hundred two".