49686280 has 96 divisors (see below), whose sum is σ = 132949440. Its totient is φ = 16369920.

The previous prime is 49686271. The next prime is 49686313. The reversal of 49686280 is 8268694.

49686280 = 1813² + 1814² + ... + 1827².

It is a happy 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, 235375 + ... + 235585.

It is an arithmetic number, because the mean of its divisors is an integer number (1384890).

Almost surely, 2^49686280 is an apocalyptic number.

49686280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49686280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66474720).

49686280 is an abundant number, since it is smaller than the sum of its proper divisors (83263160).

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

49686280 is a wasteful number, since it uses less digits than its factorization.

49686280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 49686280 is about 7048.8495515226. The cubic root of 49686280 is about 367.6310298342.

The spelling of 49686280 in words is "forty-nine million, six hundred eighty-six thousand, two hundred eighty".