49699140 has 96 divisors (see below), whose sum is σ = 145657344. Its totient is φ = 12648960.

The previous prime is 49699129. The next prime is 49699141. The reversal of 49699140 is 4199694.

49699140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 49699092 and 49699101.

It is not an unprimeable number, because it can be changed into a prime (49699141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135237 + ... + 135603.

It is an arithmetic number, because the mean of its divisors is an integer number (1517264).

Almost surely, 2^49699140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49699140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72828672).

49699140 is an abundant number, since it is smaller than the sum of its proper divisors (95958204).

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

49699140 is a wasteful number, since it uses less digits than its factorization.

49699140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 49699140 is about 7049.7616981002. The cubic root of 49699140 is about 367.6627443385.

The spelling of 49699140 in words is "forty-nine million, six hundred ninety-nine thousand, one hundred forty".