140941980 has 36 divisors (see below), whose sum is σ = 427524552. Its totient is φ = 37584480.

The previous prime is 140941979. The next prime is 140941993. The reversal of 140941980 is 89149041.

It is a tau number, because it is divible by the number of its divisors (36).

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391326 + ... + 391685.

It is an arithmetic number, because the mean of its divisors is an integer number (11875682).

Almost surely, 2^140941980 is an apocalyptic number.

140941980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140941980 is an abundant number, since it is smaller than the sum of its proper divisors (286582572).

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

140941980 is a wasteful number, since it uses less digits than its factorization.

140941980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783026 (or 783021 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 140941980 is about 11871.8987529375. The cubic root of 140941980 is about 520.4113855018.

The spelling of 140941980 in words is "one hundred forty million, nine hundred forty-one thousand, nine hundred eighty".