49289340 has 24 divisors (see below), whose sum is σ = 138010320. Its totient is φ = 13143808.

The previous prime is 49289333. The next prime is 49289351. The reversal of 49289340 is 4398294.

It is a congruent number.

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, 410685 + ... + 410804.

It is an arithmetic number, because the mean of its divisors is an integer number (5750430).

Almost surely, 2^49289340 is an apocalyptic number.

It is an amenable number.

49289340 is an abundant number, since it is smaller than the sum of its proper divisors (88720980).

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

49289340 is a wasteful number, since it uses less digits than its factorization.

49289340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821501 (or 821499 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 49289340 is about 7020.6367232609. The cubic root of 49289340 is about 366.6494188397.

The spelling of 49289340 in words is "forty-nine million, two hundred eighty-nine thousand, three hundred forty".