140437440 has 504 divisors, whose sum is σ = 590239104. Its totient is φ = 30412800.

The previous prime is 140437403. The next prime is 140437463. The reversal of 140437440 is 44734041.

140437440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4530225 + ... + 4530255.

Almost surely, 2^140437440 is an apocalyptic number.

140437440 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 140437440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295119552).

140437440 is an abundant number, since it is smaller than the sum of its proper divisors (449801664).

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

140437440 is a wasteful number, since it uses less digits than its factorization.

140437440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 140437440 is about 11850.6303629807. The cubic root of 140437440 is about 519.7896585175.

It can be divided in two parts, 140 and 437440, that added together give a triangular number (437580 = T₉₃₅).

The spelling of 140437440 in words is "one hundred forty million, four hundred thirty-seven thousand, four hundred forty".