140437660 has 48 divisors (see below), whose sum is σ = 325648512. Its totient is φ = 50446400.

The previous prime is 140437631. The next prime is 140437679. The reversal of 140437660 is 66734041.

140437660 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 15 ways as a sum of consecutive naturals, for example, 14415 + ... + 22105.

It is an arithmetic number, because the mean of its divisors is an integer number (6784344).

Almost surely, 2^140437660 is an apocalyptic number.

140437660 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 140437660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162824256).

140437660 is an abundant number, since it is smaller than the sum of its proper divisors (185210852).

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

140437660 is a wasteful number, since it uses less digits than its factorization.

140437660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794 (or 7792 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 140437660 is about 11850.6396451837. The cubic root of 140437660 is about 519.7899299400.

The spelling of 140437660 in words is "one hundred forty million, four hundred thirty-seven thousand, six hundred sixty".