140440140434430 has 48 divisors (see below), whose sum is σ = 366161480436960. Its totient is φ = 37346384597184.

The previous prime is 140440140434387. The next prime is 140440140434491. The reversal of 140440140434430 is 34434041044041.

140440140434430 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 40 + 140 + 43 + 4 + 430 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2173290817 + ... + 2173355436.

It is an arithmetic number, because the mean of its divisors is an integer number (7628364175770).

Almost surely, 2^{140440140434430} is an apocalyptic number.

140440140434430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140440140434430 is an abundant number, since it is smaller than the sum of its proper divisors (225721340002530).

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

140440140434430 is a wasteful number, since it uses less digits than its factorization.

140440140434430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346646625 (or 4346646622 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 140440140434430 its reverse (34434041044041), we get a palindrome (174874181478471).

The spelling of 140440140434430 in words is "one hundred forty trillion, four hundred forty billion, one hundred forty million, four hundred thirty-four thousand, four hundred thirty".