47940849 has 64 divisors (see below), whose sum is σ = 82575360. Its totient is φ = 27216000.

The previous prime is 47940803. The next prime is 47940853. The reversal of 47940849 is 94804974.

It is not a de Polignac number, because 47940849 - 2⁸ = 47940593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47940859) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 377424 + ... + 377550.

It is an arithmetic number, because the mean of its divisors is an integer number (1290240).

Almost surely, 2^47940849 is an apocalyptic number.

It is an amenable number.

47940849 is a deficient number, since it is larger than the sum of its proper divisors (34634511).

47940849 is a wasteful number, since it uses less digits than its factorization.

47940849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 47940849 is about 6923.9330586019. The cubic root of 47940849 is about 363.2747731749.

It can be divided in two parts, 479 and 40849, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 47940849 in words is "forty-seven million, nine hundred forty thousand, eight hundred forty-nine".