104021000 has 32 divisors (see below), whose sum is σ = 243411480. Its totient is φ = 41608000.

The previous prime is 104020967. The next prime is 104021003. The reversal of 104021000 is 120401.

It can be written as a sum of positive squares in 4 ways, for example, as 41705764 + 62315236 = 6458^2 + 7894^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (104021003) 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 7 ways as a sum of consecutive naturals, for example, 51011 + ... + 53010.

Almost surely, 2^104021000 is an apocalyptic number.

104021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104021000 is an abundant number, since it is smaller than the sum of its proper divisors (139390480).

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

104021000 is a wasteful number, since it uses less digits than its factorization.

104021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104042 (or 104028 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 104021000 is about 10199.0685849248. The cubic root of 104021000 is about 470.2985879963.

Adding to 104021000 its reverse (120401), we get a palindrome (104141401).

The spelling of 104021000 in words is "one hundred four million, twenty-one thousand".