49313280 has 80 divisors (see below), whose sum is σ = 157672944. Its totient is φ = 13148160.

The previous prime is 49313249. The next prime is 49313291. The reversal of 49313280 is 8231394.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4470 + ... + 10890.

Almost surely, 2^49313280 is an apocalyptic number.

49313280 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 49313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78836472).

49313280 is an abundant number, since it is smaller than the sum of its proper divisors (108359664).

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

49313280 is an equidigital number, since it uses as much as digits as its factorization.

49313280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447 (or 6431 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 49313280 is about 7022.3414898451. The cubic root of 49313280 is about 366.7087701881.

The spelling of 49313280 in words is "forty-nine million, three hundred thirteen thousand, two hundred eighty".