140034405 has 24 divisors (see below), whose sum is σ = 260636832. Its totient is φ = 64015392.

The previous prime is 140034353. The next prime is 140034407. The reversal of 140034405 is 504430041.

It is not a de Polignac number, because 140034405 - 2⁷ = 140034277 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140034407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94527 + ... + 95996.

It is an arithmetic number, because the mean of its divisors is an integer number (10859868).

Almost surely, 2^140034405 is an apocalyptic number.

140034405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140034405 is a deficient number, since it is larger than the sum of its proper divisors (120602427).

140034405 is a wasteful number, since it uses less digits than its factorization.

140034405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190545 (or 190538 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 140034405 is about 11833.6133534944. The cubic root of 140034405 is about 519.2919418821.

Adding to 140034405 its reverse (504430041), we get a palindrome (644464446).

The spelling of 140034405 in words is "one hundred forty million, thirty-four thousand, four hundred five".