140090944 has 28 divisors (see below), whose sum is σ = 317707264. Its totient is φ = 60038784.

The previous prime is 140090941. The next prime is 140090983. The reversal of 140090944 is 449090041.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×140090944² = 39250945181622272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140090941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155904 + ... + 156799.

It is an arithmetic number, because the mean of its divisors is an integer number (11346688).

Almost surely, 2^140090944 is an apocalyptic number.

140090944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140090944 is an abundant number, since it is smaller than the sum of its proper divisors (177616320).

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

140090944 is an equidigital number, since it uses as much as digits as its factorization.

140090944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312722 (or 312712 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 140090944 is about 11836.0020277119. The cubic root of 140090944 is about 519.3618206536.

The spelling of 140090944 in words is "one hundred forty million, ninety thousand, nine hundred forty-four".