140805648 has 40 divisors (see below), whose sum is σ = 404165600. Its totient is φ = 46935072.

The previous prime is 140805631. The next prime is 140805653. The reversal of 140805648 is 846508041.

140805648 is a `hidden beast` number, since 1 + 4 + 0 + 8 + 0 + 5 + 648 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162538 + ... + 163401.

It is an arithmetic number, because the mean of its divisors is an integer number (10104140).

Almost surely, 2^140805648 is an apocalyptic number.

140805648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140805648 is an abundant number, since it is smaller than the sum of its proper divisors (263359952).

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

140805648 is a wasteful number, since it uses less digits than its factorization.

140805648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325956 (or 325944 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 140805648 is about 11866.1555695179. The cubic root of 140805648 is about 520.2435348412.

The spelling of 140805648 in words is "one hundred forty million, eight hundred five thousand, six hundred forty-eight".