140764988 has 48 divisors (see below), whose sum is σ = 304518144. Its totient is φ = 55442880.

The previous prime is 140764969. The next prime is 140765021. The reversal of 140764988 is 889467041.

140764988 is digitally balanced in base 3, 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, 97931 + ... + 99357.

It is an arithmetic number, because the mean of its divisors is an integer number (6344128).

Almost surely, 2^140764988 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 140764988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152259072).

140764988 is an abundant number, since it is smaller than the sum of its proper divisors (163753156).

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

140764988 is a wasteful number, since it uses less digits than its factorization.

140764988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 140764988 is about 11864.4421697777. The cubic root of 140764988 is about 520.1934536623.

The spelling of 140764988 in words is "one hundred forty million, seven hundred sixty-four thousand, nine hundred eighty-eight".