140403340 has 192 divisors, whose sum is σ = 404103168. Its totient is φ = 39628800.

The previous prime is 140403337. The next prime is 140403379. The reversal of 140403340 is 43304041.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 811494 + ... + 811666.

It is an arithmetic number, because the mean of its divisors is an integer number (2104704).

Almost surely, 2^140403340 is an apocalyptic number.

140403340 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 140403340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202051584).

140403340 is an abundant number, since it is smaller than the sum of its proper divisors (263699828).

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

140403340 is a wasteful number, since it uses less digits than its factorization.

140403340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 140403340 is about 11849.1915336026. The cubic root of 140403340 is about 519.7475845944.

Adding to 140403340 its reverse (43304041), we get a palindrome (183707381).

The spelling of 140403340 in words is "one hundred forty million, four hundred three thousand, three hundred forty".