84225400 has 48 divisors (see below), whose sum is σ = 223802640. Its totient is φ = 28876800.

The previous prime is 84225389. The next prime is 84225413. The reversal of 84225400 is 452248.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28681 + ... + 31480.

It is an arithmetic number, because the mean of its divisors is an integer number (4662555).

Almost surely, 2^84225400 is an apocalyptic number.

It is an amenable number.

84225400 is an abundant number, since it is smaller than the sum of its proper divisors (139577240).

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

84225400 is a wasteful number, since it uses less digits than its factorization.

84225400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60184 (or 60175 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 84225400 is about 9177.4397301208. The cubic root of 84225400 is about 438.3432877915.

Adding to 84225400 its reverse (452248), we get a palindrome (84677648).

The spelling of 84225400 in words is "eighty-four million, two hundred twenty-five thousand, four hundred".