140423433040 has 120 divisors (see below), whose sum is σ = 368563051080. Its totient is φ = 49682856960.

The previous prime is 140423433037. The next prime is 140423433041. The reversal of 140423433040 is 40334324041.

It can be written as a sum of positive squares in 4 ways, for example, as 83592687376 + 56830745664 = 289124^2 + 238392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140423433041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162126 + ... + 554194.

It is an arithmetic number, because the mean of its divisors is an integer number (3071358759).

Almost surely, 2^140423433040 is an apocalyptic number.

140423433040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140423433040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184281525540).

140423433040 is an abundant number, since it is smaller than the sum of its proper divisors (228139618040).

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

140423433040 is a wasteful number, since it uses less digits than its factorization.

140423433040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392141 (or 392124 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 140423433040 its reverse (40334324041), we get a palindrome (180757757081).

The spelling of 140423433040 in words is "one hundred forty billion, four hundred twenty-three million, four hundred thirty-three thousand, forty".