84226740 has 96 divisors (see below), whose sum is σ = 257233536. Its totient is φ = 20467200.

The previous prime is 84226739. The next prime is 84226777. The reversal of 84226740 is 4762248.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64090 + ... + 65390.

It is an arithmetic number, because the mean of its divisors is an integer number (2679516).

Almost surely, 2^84226740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84226740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128616768).

84226740 is an abundant number, since it is smaller than the sum of its proper divisors (173006796).

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

84226740 is a wasteful number, since it uses less digits than its factorization.

84226740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 84226740 is about 9177.5127349408. The cubic root of 84226740 is about 438.3456124145.

Adding to 84226740 its reverse (4762248), we get a palindrome (88988988).

The spelling of 84226740 in words is "eighty-four million, two hundred twenty-six thousand, seven hundred forty".