140938380 has 180 divisors, whose sum is σ = 486652320. Its totient is φ = 34119360.

The previous prime is 140938349. The next prime is 140938393. The reversal of 140938380 is 83839041.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 195661 + ... + 196379.

It is an arithmetic number, because the mean of its divisors is an integer number (2703624).

Almost surely, 2^140938380 is an apocalyptic number.

140938380 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 140938380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243326160).

140938380 is an abundant number, since it is smaller than the sum of its proper divisors (345713940).

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

140938380 is a wasteful number, since it uses less digits than its factorization.

140938380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 140938380 is about 11871.7471334256. The cubic root of 140938380 is about 520.4069546077.

The spelling of 140938380 in words is "one hundred forty million, nine hundred thirty-eight thousand, three hundred eighty".