84302420 has 24 divisors (see below), whose sum is σ = 183141000. Its totient is φ = 32557952.

The previous prime is 84302419. The next prime is 84302441. The reversal of 84302420 is 2420348.

It can be written as a sum of positive squares in 4 ways, for example, as 4343056 + 79959364 = 2084^2 + 8942^2 .

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 7 ways as a sum of consecutive naturals, for example, 72095 + ... + 73254.

It is an arithmetic number, because the mean of its divisors is an integer number (7630875).

Almost surely, 2^84302420 is an apocalyptic number.

It is an amenable number.

84302420 is an abundant number, since it is smaller than the sum of its proper divisors (98838580).

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

84302420 is a wasteful number, since it uses less digits than its factorization.

84302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145387 (or 145385 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 84302420 is about 9181.6349306646. The cubic root of 84302420 is about 438.4768615680.

Adding to 84302420 its reverse (2420348), we get a palindrome (86722768).

The spelling of 84302420 in words is "eighty-four million, three hundred two thousand, four hundred twenty".