140340520 has 32 divisors (see below), whose sum is σ = 316108800. Its totient is φ = 56075328.

The previous prime is 140340511. The next prime is 140340533. The reversal of 140340520 is 25043041.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61561 + ... + 63799.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2^140340520 is an apocalyptic number.

140340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140340520 is an abundant number, since it is smaller than the sum of its proper divisors (175768280).

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

140340520 is a wasteful number, since it uses less digits than its factorization.

140340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 140340520 is about 11846.5404232628. The cubic root of 140340520 is about 519.6700569657.

Adding to 140340520 its reverse (25043041), we get a palindrome (165383561).

The spelling of 140340520 in words is "one hundred forty million, three hundred forty thousand, five hundred twenty".