140202930 has 64 divisors (see below), whose sum is σ = 386622720. Its totient is φ = 31874304.

The previous prime is 140202929. The next prime is 140202941. The reversal of 140202930 is 39202041.

140202930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 140202897 and 140202906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39676 + ... + 43064.

It is an arithmetic number, because the mean of its divisors is an integer number (6040980).

Almost surely, 2^140202930 is an apocalyptic number.

140202930 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 140202930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193311360).

140202930 is an abundant number, since it is smaller than the sum of its proper divisors (246419790).

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

140202930 is a wasteful number, since it uses less digits than its factorization.

140202930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 140202930 is about 11840.7318185997. The cubic root of 140202930 is about 519.5001730705.

Adding to 140202930 its reverse (39202041), we get a palindrome (179404971).

The spelling of 140202930 in words is "one hundred forty million, two hundred two thousand, nine hundred thirty".