140431430 has 16 divisors (see below), whose sum is σ = 253865664. Its totient is φ = 55930560.

The previous prime is 140431429. The next prime is 140431453. The reversal of 140431430 is 34134041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27806 + ... + 32465.

It is an arithmetic number, because the mean of its divisors is an integer number (15866604).

Almost surely, 2^140431430 is an apocalyptic number.

140431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140431430 is a deficient number, since it is larger than the sum of its proper divisors (113434234).

140431430 is a wasteful number, since it uses less digits than its factorization.

140431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60511.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 140431430 is about 11850.3767872587. The cubic root of 140431430 is about 519.7822436372.

Adding to 140431430 its reverse (34134041), we get a palindrome (174565471).

The spelling of 140431430 in words is "one hundred forty million, four hundred thirty-one thousand, four hundred thirty".