140228897440 has 24 divisors (see below), whose sum is σ = 331290770580. Its totient is φ = 56091558912.

The previous prime is 140228897383. The next prime is 140228897531. The reversal of 140228897440 is 44798822041.

It can be written as a sum of positive squares in 2 ways, for example, as 136134433296 + 4094464144 = 368964^2 + 63988^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438215145 + ... + 438215464.

Almost surely, 2^140228897440 is an apocalyptic number.

140228897440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140228897440 is an abundant number, since it is smaller than the sum of its proper divisors (191061873140).

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

140228897440 is an equidigital number, since it uses as much as digits as its factorization.

140228897440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876430624 (or 876430616 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 140228897440 in words is "one hundred forty billion, two hundred twenty-eight million, eight hundred ninety-seven thousand, four hundred forty".