140322780 has 144 divisors (see below), whose sum is σ = 475579104. Its totient is φ = 34525440.

The previous prime is 140322761. The next prime is 140322821. The reversal of 140322780 is 87223041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62070 + ... + 64290.

Almost surely, 2^140322780 is an apocalyptic number.

140322780 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 140322780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237789552).

140322780 is an abundant number, since it is smaller than the sum of its proper divisors (335256324).

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

140322780 is a wasteful number, since it uses less digits than its factorization.

140322780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 140322780 is about 11845.7916577998. The cubic root of 140322780 is about 519.6481594285.

The spelling of 140322780 in words is "one hundred forty million, three hundred twenty-two thousand, seven hundred eighty".