84106240 has 44 divisors (see below), whose sum is σ = 201768696. Its totient is φ = 33640448.

The previous prime is 84106229. The next prime is 84106241. The reversal of 84106240 is 4260148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84106241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094 + ... + 13333.

Almost surely, 2^84106240 is an apocalyptic number.

84106240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84106240 is an abundant number, since it is smaller than the sum of its proper divisors (117662456).

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

84106240 is a wasteful number, since it uses less digits than its factorization.

84106240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16452 (or 16434 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 84106240 is about 9170.9454256363. The cubic root of 84106240 is about 438.1364711693.

Adding to 84106240 its reverse (4260148), we get a palindrome (88366388).

The spelling of 84106240 in words is "eighty-four million, one hundred six thousand, two hundred forty".