84200140 has 24 divisors (see below), whose sum is σ = 177401952. Its totient is φ = 33569280.

The previous prime is 84200113. The next prime is 84200147. The reversal of 84200140 is 4100248.

It is not an unprimeable number, because it can be changed into a prime (84200147) 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 7 ways as a sum of consecutive naturals, for example, 549 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (7391748).

Almost surely, 2^84200140 is an apocalyptic number.

It is an amenable number.

84200140 is an abundant number, since it is smaller than the sum of its proper divisors (93201812).

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

84200140 is a wasteful number, since it uses less digits than its factorization.

84200140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13857 (or 13855 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 84200140 is about 9176.0634261103. The cubic root of 84200140 is about 438.2994623004.

Adding to 84200140 its reverse (4100248), we get a palindrome (88300388).

The spelling of 84200140 in words is "eighty-four million, two hundred thousand, one hundred forty".