140798190 has 128 divisors (see below), whose sum is σ = 384652800. Its totient is φ = 32739840.

The previous prime is 140798179. The next prime is 140798191. The reversal of 140798190 is 91897041.

It is a happy number.

140798190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140798190² = 39648260614552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140798191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 667185 + ... + 667395.

It is an arithmetic number, because the mean of its divisors is an integer number (3005100).

Almost surely, 2^140798190 is an apocalyptic number.

140798190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140798190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192326400).

140798190 is an abundant number, since it is smaller than the sum of its proper divisors (243854610).

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

140798190 is a wasteful number, since it uses less digits than its factorization.

140798190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 140798190 is about 11865.8413102485. The cubic root of 140798190 is about 520.2343494976.

The spelling of 140798190 in words is "one hundred forty million, seven hundred ninety-eight thousand, one hundred ninety".