49949900 has 144 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 14342400.

The previous prime is 49949881. The next prime is 49949909. The reversal of 49949900 is 994994.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (49949909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99851 + ... + 100349.

Almost surely, 2^49949900 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 49949900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72912000).

49949900 is an abundant number, since it is smaller than the sum of its proper divisors (95874100).

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

49949900 is a wasteful number, since it uses less digits than its factorization.

49949900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 49949900 is about 7067.5243190243. The cubic root of 49949900 is about 368.2800620915.

It can be divided in two parts, 499 and 49900, that multiplied together give a square (24900100 = 4990²).

The spelling of 49949900 in words is "forty-nine million, nine hundred forty-nine thousand, nine hundred".