84420330 has 32 divisors (see below), whose sum is σ = 204164928. Its totient is φ = 22339200.

The previous prime is 84420307. The next prime is 84420383. The reversal of 84420330 is 3302448.

It is a self number, because there is not a number n which added to its sum of digits gives 84420330.

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 15 ways as a sum of consecutive naturals, for example, 6811 + ... + 14670.

It is an arithmetic number, because the mean of its divisors is an integer number (6380154).

Almost surely, 2^84420330 is an apocalyptic number.

84420330 is an abundant number, since it is smaller than the sum of its proper divisors (119744598).

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

84420330 is a wasteful number, since it uses less digits than its factorization.

84420330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21622.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 84420330 is about 9188.0536567872. The cubic root of 84420330 is about 438.6811922843.

Adding to 84420330 its reverse (3302448), we get a palindrome (87722778).

The spelling of 84420330 in words is "eighty-four million, four hundred twenty thousand, three hundred thirty".