104379840 has 140 divisors (see below), whose sum is σ = 371389656. Its totient is φ = 27827712.

The previous prime is 104379839. The next prime is 104379841. The reversal of 104379840 is 48973401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104379839) and next prime (104379841).

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

It is a junction number, because it is equal to n+sod(n) for n = 104379795 and 104379804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104379841) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23907 + ... + 27933.

Almost surely, 2^104379840 is an apocalyptic number.

104379840 is a gapful number since it is divisible by the number (10) 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 104379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185694828).

104379840 is an abundant number, since it is smaller than the sum of its proper divisors (267009816).

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

104379840 is an equidigital number, since it uses as much as digits as its factorization.

104379840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 104379840 is about 10216.6452419569. The cubic root of 104379840 is about 470.8387617999.

The spelling of 104379840 in words is "one hundred four million, three hundred seventy-nine thousand, eight hundred forty".