140464688 has 120 divisors (see below), whose sum is σ = 346915296. Its totient is φ = 53913600.

The previous prime is 140464669. The next prime is 140464741. The reversal of 140464688 is 886464041.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 775958 + ... + 776138.

Almost surely, 2^140464688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140464688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173457648).

140464688 is an abundant number, since it is smaller than the sum of its proper divisors (206450608).

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

140464688 is a wasteful number, since it uses less digits than its factorization.

140464688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 140464688 is about 11851.7799507078. The cubic root of 140464688 is about 519.8232732780.

The spelling of 140464688 in words is "one hundred forty million, four hundred sixty-four thousand, six hundred eighty-eight".