104252240 has 80 divisors (see below), whose sum is σ = 257929920. Its totient is φ = 39075840.

The previous prime is 104252237. The next prime is 104252243. The reversal of 104252240 is 42252401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104252237) and next prime (104252243).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104252243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162320 + ... + 162960.

It is an arithmetic number, because the mean of its divisors is an integer number (3224124).

Almost surely, 2^104252240 is an apocalyptic number.

104252240 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 104252240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128964960).

104252240 is an abundant number, since it is smaller than the sum of its proper divisors (153677680).

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

104252240 is a wasteful number, since it uses less digits than its factorization.

104252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 104252240 is about 10210.3986210138. The cubic root of 104252240 is about 470.6468233183.

The spelling of 104252240 in words is "one hundred four million, two hundred fifty-two thousand, two hundred forty".