49488309 has 48 divisors (see below), whose sum is σ = 82555200. Its totient is φ = 28297728.

The previous prime is 49488281. The next prime is 49488311. The reversal of 49488309 is 90388494.

It is a happy number.

It is not a de Polignac number, because 49488309 - 2⁸ = 49488053 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49488359) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276382 + ... + 276560.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^49488309 is an apocalyptic number.

It is an amenable number.

49488309 is a deficient number, since it is larger than the sum of its proper divisors (33066891).

49488309 is a wasteful number, since it uses less digits than its factorization.

49488309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 49488309 is about 7034.7927474802. The cubic root of 49488309 is about 367.1421144532.

The spelling of 49488309 in words is "forty-nine million, four hundred eighty-eight thousand, three hundred nine".