49835640 has 64 divisors (see below), whose sum is σ = 151581600. Its totient is φ = 13105152.

The previous prime is 49835603. The next prime is 49835647. The reversal of 49835640 is 4653894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49835647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5916 + ... + 11604.

Almost surely, 2^49835640 is an apocalyptic number.

49835640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49835640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75790800).

49835640 is an abundant number, since it is smaller than the sum of its proper divisors (101745960).

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

49835640 is a wasteful number, since it uses less digits than its factorization.

49835640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776 (or 5772 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 49835640 is about 7059.4362381142. The cubic root of 49835640 is about 367.9990351266. Note that the first 3 decimals are identical.

The spelling of 49835640 in words is "forty-nine million, eight hundred thirty-five thousand, six hundred forty".