85454420 has 48 divisors (see below), whose sum is σ = 184161600. Its totient is φ = 33296640.

The previous prime is 85454399. The next prime is 85454429. The reversal of 85454420 is 2445458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85454429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163760 + ... + 164280.

It is an arithmetic number, because the mean of its divisors is an integer number (3836700).

Almost surely, 2^85454420 is an apocalyptic number.

It is an amenable number.

85454420 is an abundant number, since it is smaller than the sum of its proper divisors (98707180).

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

85454420 is a wasteful number, since it uses less digits than its factorization.

85454420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 85454420 is about 9244.1559917604. The cubic root of 85454420 is about 440.4651073529.

Adding to 85454420 its reverse (2445458), we get a palindrome (87899878).

The spelling of 85454420 in words is "eighty-five million, four hundred fifty-four thousand, four hundred twenty".