49445136 has 120 divisors (see below), whose sum is σ = 151814936. Its totient is φ = 14929920.

The previous prime is 49445119. The next prime is 49445153. The reversal of 49445136 is 63154494.

It is an interprime number because it is at equal distance from previous prime (49445119) and next prime (49445153).

It can be written as a sum of positive squares in 4 ways, for example, as 5089536 + 44355600 = 2256^2 + 6660^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 49445136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113976 + ... + 114408.

Almost surely, 2^49445136 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 49445136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75907468).

49445136 is an abundant number, since it is smaller than the sum of its proper divisors (102369800).

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

49445136 is a wasteful number, since it uses less digits than its factorization.

49445136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 512 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 49445136 is about 7031.7235440538. The cubic root of 49445136 is about 367.0353199506.

The spelling of 49445136 in words is "forty-nine million, four hundred forty-five thousand, one hundred thirty-six".