8412240 has 40 divisors (see below), whose sum is σ = 26078688. Its totient is φ = 2243200.

The previous prime is 8412223. The next prime is 8412241. The reversal of 8412240 is 422148.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8412241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17286 + ... + 17765.

Almost surely, 2^8412240 is an apocalyptic number.

8412240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8412240 is an abundant number, since it is smaller than the sum of its proper divisors (17666448).

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

8412240 is a wasteful number, since it uses less digits than its factorization.

8412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35067 (or 35061 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 8412240 is about 2900.3861811835. The cubic root of 8412240 is about 203.3779590905.

Adding to 8412240 its reverse (422148), we get a palindrome (8834388).

It can be divided in two parts, 841 and 2240, that added together give a triangular number (3081 = T₇₈).

The spelling of 8412240 in words is "eight million, four hundred twelve thousand, two hundred forty".