140421435 has 32 divisors (see below), whose sum is σ = 280115712. Its totient is φ = 58356480.

The previous prime is 140421431. The next prime is 140421511. The reversal of 140421435 is 534124041.

It is not a de Polignac number, because 140421435 - 2² = 140421431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140421431) 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, 59634 + ... + 61943.

It is an arithmetic number, because the mean of its divisors is an integer number (8753616).

Almost surely, 2^140421435 is an apocalyptic number.

140421435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140421435 is a deficient number, since it is larger than the sum of its proper divisors (139694277).

140421435 is a wasteful number, since it uses less digits than its factorization.

140421435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121603.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140421435 is about 11849.9550632059. The cubic root of 140421435 is about 519.7699117663.

Adding to 140421435 its reverse (534124041), we get a palindrome (674545476).

The spelling of 140421435 in words is "one hundred forty million, four hundred twenty-one thousand, four hundred thirty-five".