140342800 has 120 divisors (see below), whose sum is σ = 367617096. Its totient is φ = 51179520.

The previous prime is 140342767. The next prime is 140342809. The reversal of 140342800 is 8243041.

It can be written as a sum of positive squares in 12 ways, for example, as 17842176 + 122500624 = 4224^2 + 11068^2 .

It is a super-2 number, since 2×140342800² = 39392203023680000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140342809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 712302 + ... + 712498.

Almost surely, 2^140342800 is an apocalyptic number.

140342800 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 140342800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183808548).

140342800 is an abundant number, since it is smaller than the sum of its proper divisors (227274296).

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

140342800 is a wasteful number, since it uses less digits than its factorization.

140342800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 140342800 is about 11846.6366534979. The cubic root of 140342800 is about 519.6728711715.

Adding to 140342800 its reverse (8243041), we get a palindrome (148585841).

The spelling of 140342800 in words is "one hundred forty million, three hundred forty-two thousand, eight hundred".