84090150 has 96 divisors (see below), whose sum is σ = 234880800. Its totient is φ = 22394880.

The previous prime is 84090131. The next prime is 84090151. The reversal of 84090150 is 5109048.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84090151) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 108966 + ... + 109734.

It is an arithmetic number, because the mean of its divisors is an integer number (2446675).

Almost surely, 2^84090150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84090150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117440400).

84090150 is an abundant number, since it is smaller than the sum of its proper divisors (150790650).

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

84090150 is an equidigital number, since it uses as much as digits as its factorization.

84090150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 84090150 is about 9170.0681567805. The cubic root of 84090150 is about 438.1085300581.

Adding to 84090150 its reverse (5109048), we get a palindrome (89199198).

The spelling of 84090150 in words is "eighty-four million, ninety thousand, one hundred fifty".