49987404 has 72 divisors (see below), whose sum is σ = 134447040. Its totient is φ = 15615072.

The previous prime is 49987397. The next prime is 49987409. The reversal of 49987404 is 40478994.

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

It is a self number, because there is not a number n which added to its sum of digits gives 49987404.

It is not an unprimeable number, because it can be changed into a prime (49987409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72847 + ... + 73529.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^49987404 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 49987404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67223520).

49987404 is an abundant number, since it is smaller than the sum of its proper divisors (84459636).

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

49987404 is a wasteful number, since it uses less digits than its factorization.

49987404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 49987404 is about 7070.1770840623. The cubic root of 49987404 is about 368.3722112254.

The spelling of 49987404 in words is "forty-nine million, nine hundred eighty-seven thousand, four hundred four".