140008900 has 36 divisors (see below), whose sum is σ = 305613252. Its totient is φ = 55672960.

The previous prime is 140008879. The next prime is 140008919. The reversal of 140008900 is 9800041.

It can be written as a sum of positive squares in 6 ways, for example, as 627264 + 139381636 = 792^2 + 11806^2 .

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, 13254 + ... + 21346.

It is an arithmetic number, because the mean of its divisors is an integer number (8489257).

Almost surely, 2^140008900 is an apocalyptic number.

140008900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140008900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152806626).

140008900 is an abundant number, since it is smaller than the sum of its proper divisors (165604352).

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

140008900 is a wasteful number, since it uses less digits than its factorization.

140008900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280 (or 8273 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 140008900 is about 11832.5356538656. The cubic root of 140008900 is about 519.2604130942.

Adding to 140008900 its reverse (9800041), we get a palindrome (149808941).

The spelling of 140008900 in words is "one hundred forty million, eight thousand, nine hundred".