49980736 has 42 divisors (see below), whose sum is σ = 107419902. Its totient is φ = 23063040.

The previous prime is 49980713. The next prime is 49980737. The reversal of 49980736 is 63708994.

It can be written as a sum of positive squares in 3 ways, for example, as 193600 + 49787136 = 440^2 + 7056^2 .

It is a super-2 number, since 2×49980736² = 4996147942203392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49980737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8506 + ... + 13126.

Almost surely, 2^49980736 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 49980736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53709951).

49980736 is an abundant number, since it is smaller than the sum of its proper divisors (57439166).

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

49980736 is a wasteful number, since it uses less digits than its factorization.

49980736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659 (or 4636 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 49980736 is about 7069.7055101327. The cubic root of 49980736 is about 368.3558309980.

The spelling of 49980736 in words is "forty-nine million, nine hundred eighty thousand, seven hundred thirty-six".