140842780 has 48 divisors (see below), whose sum is σ = 322600320. Its totient is φ = 51337728.

The previous prime is 140842729. The next prime is 140842781. The reversal of 140842780 is 87248041.

140842780 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

140842780 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140842781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17112 + ... + 23968.

It is an arithmetic number, because the mean of its divisors is an integer number (6720840).

Almost surely, 2^140842780 is an apocalyptic number.

140842780 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 140842780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161300160).

140842780 is an abundant number, since it is smaller than the sum of its proper divisors (181757540).

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

140842780 is a wasteful number, since it uses less digits than its factorization.

140842780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958 (or 6956 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 140842780 is about 11867.7200843296. The cubic root of 140842780 is about 520.2892621383.

The spelling of 140842780 in words is "one hundred forty million, eight hundred forty-two thousand, seven hundred eighty".