140823043440 has 80 divisors (see below), whose sum is σ = 437259433248. Its totient is φ = 37491908608.

The previous prime is 140823043433. The next prime is 140823043477. The reversal of 140823043440 is 44340328041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×140823043440² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327417 + ... + 623576.

Almost surely, 2^140823043440 is an apocalyptic number.

140823043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140823043440 is an abundant number, since it is smaller than the sum of its proper divisors (296436389808).

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

140823043440 is a wasteful number, since it uses less digits than its factorization.

140823043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951626 (or 951620 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The spelling of 140823043440 in words is "one hundred forty billion, eight hundred twenty-three million, forty-three thousand, four hundred forty".