49709478 has 64 divisors (see below), whose sum is σ = 123282432. Its totient is φ = 13011840.

The previous prime is 49709477. The next prime is 49709489. The reversal of 49709478 is 87490794.

It is a happy number.

49709478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49709477) 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, 98575 + ... + 99077.

It is an arithmetic number, because the mean of its divisors is an integer number (1926288).

Almost surely, 2^49709478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49709478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61641216).

49709478 is an abundant number, since it is smaller than the sum of its proper divisors (73572954).

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

49709478 is a wasteful number, since it uses less digits than its factorization.

49709478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 49709478 is about 7050.4948762480. The cubic root of 49709478 is about 367.6882352822.

The spelling of 49709478 in words is "forty-nine million, seven hundred nine thousand, four hundred seventy-eight".