140867780 has 48 divisors (see below), whose sum is σ = 314299440. Its totient is φ = 52850688.

The previous prime is 140867777. The next prime is 140867791. The reversal of 140867780 is 87768041.

It can be written as a sum of positive squares in 8 ways, for example, as 350464 + 140517316 = 592^2 + 11854^2 .

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, 138554 + ... + 139566.

It is an arithmetic number, because the mean of its divisors is an integer number (6547905).

Almost surely, 2^140867780 is an apocalyptic number.

140867780 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 140867780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157149720).

140867780 is an abundant number, since it is smaller than the sum of its proper divisors (173431660).

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

140867780 is a wasteful number, since it uses less digits than its factorization.

140867780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 140867780 is about 11868.7733148797. The cubic root of 140867780 is about 520.3200445990.

The spelling of 140867780 in words is "one hundred forty million, eight hundred sixty-seven thousand, seven hundred eighty".