49319280 has 240 divisors, whose sum is σ = 178738560. Its totient is φ = 12628224.

The previous prime is 49319239. The next prime is 49319287. The reversal of 49319280 is 8291394.

49319280 is a `hidden beast` number, since 493 + 1 + 92 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49319287) 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, 835891 + ... + 835949.

It is an arithmetic number, because the mean of its divisors is an integer number (744744).

Almost surely, 2^49319280 is an apocalyptic number.

49319280 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 49319280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89369280).

49319280 is an abundant number, since it is smaller than the sum of its proper divisors (129419280).

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

49319280 is a wasteful number, since it uses less digits than its factorization.

49319280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 49319280 is about 7022.7686847852. The cubic root of 49319280 is about 366.7236422023.

The spelling of 49319280 in words is "forty-nine million, three hundred nineteen thousand, two hundred eighty".