104021040 has 40 divisors (see below), whose sum is σ = 322465968. Its totient is φ = 27738880.

The previous prime is 104021003. The next prime is 104021069. The reversal of 104021040 is 40120401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216471 + ... + 216950.

Almost surely, 2^104021040 is an apocalyptic number.

104021040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104021040 is an abundant number, since it is smaller than the sum of its proper divisors (218444928).

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

104021040 is a wasteful number, since it uses less digits than its factorization.

104021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433437 (or 433431 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 104021040 is about 10199.0705458880. The cubic root of 104021040 is about 470.2986482788.

Adding to 104021040 its reverse (40120401), we get a palindrome (144141441).

The spelling of 104021040 in words is "one hundred four million, twenty-one thousand, forty".