140830890 has 64 divisors (see below), whose sum is σ = 359251200. Its totient is φ = 35210240.

The previous prime is 140830889. The next prime is 140830897. The reversal of 140830890 is 98038041.

It is not an unprimeable number, because it can be changed into a prime (140830897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234811 + ... + 235409.

It is an arithmetic number, because the mean of its divisors is an integer number (5613300).

Almost surely, 2^140830890 is an apocalyptic number.

140830890 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 140830890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179625600).

140830890 is an abundant number, since it is smaller than the sum of its proper divisors (218420310).

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

140830890 is a wasteful number, since it uses less digits than its factorization.

140830890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 140830890 is about 11867.2191350796. The cubic root of 140830890 is about 520.2746207218.

The spelling of 140830890 in words is "one hundred forty million, eight hundred thirty thousand, eight hundred ninety".