140218940 has 48 divisors (see below), whose sum is σ = 300736800. Its totient is φ = 54903552.

The previous prime is 140218909. The next prime is 140218951. The reversal of 140218940 is 49812041.

It is a super-2 number, since 2×140218940² = 39322702269447200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 360266 + ... + 360654.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^140218940 is an apocalyptic number.

140218940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140218940 is an abundant number, since it is smaller than the sum of its proper divisors (160517860).

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

140218940 is a wasteful number, since it uses less digits than its factorization.

140218940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 140218940 is about 11841.4078554875. The cubic root of 140218940 is about 519.5199465070.

The spelling of 140218940 in words is "one hundred forty million, two hundred eighteen thousand, nine hundred forty".