140804649 has 24 divisors (see below), whose sum is σ = 222025440. Its totient is φ = 88926336.

The previous prime is 140804593. The next prime is 140804681. The reversal of 140804649 is 946408041.

It is a happy number.

140804649 is a `hidden beast` number, since 1 + 4 + 0 + 8 + 0 + 4 + 649 = 666.

It is not a de Polignac number, because 140804649 - 2¹¹ = 140802601 is a prime.

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 not an unprimeable number, because it can be changed into a prime (140806649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10632 + ... + 19865.

It is an arithmetic number, because the mean of its divisors is an integer number (9251060).

Almost surely, 2^140804649 is an apocalyptic number.

140804649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140804649 is a deficient number, since it is larger than the sum of its proper divisors (81220791).

140804649 is an equidigital number, since it uses as much as digits as its factorization.

140804649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30531 (or 30519 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 140804649 is about 11866.1134749336. The cubic root of 140804649 is about 520.2423044821.

The spelling of 140804649 in words is "one hundred forty million, eight hundred four thousand, six hundred forty-nine".