140420672 has 42 divisors (see below), whose sum is σ = 324147942. Its totient is φ = 60178944.

The previous prime is 140420627. The next prime is 140420713. The reversal of 140420672 is 276024041.

It can be written as a sum of positive squares in only one way, i.e., 139617856 + 802816 = 11816^2 + 896^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19253 + ... + 25524.

Almost surely, 2^140420672 is an apocalyptic number.

It is an amenable number.

140420672 is an abundant number, since it is smaller than the sum of its proper divisors (183727270).

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

140420672 is an equidigital number, since it uses as much as digits as its factorization.

140420672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44803 (or 44786 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 140420672 is about 11849.9228689473. The cubic root of 140420672 is about 519.7689703499.

The spelling of 140420672 in words is "one hundred forty million, four hundred twenty thousand, six hundred seventy-two".