49091328 has 216 divisors, whose sum is σ = 167403600. Its totient is φ = 13639680.

The previous prime is 49091327. The next prime is 49091377. The reversal of 49091328 is 82319094.

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

It is a junction number, because it is equal to n+sod(n) for n = 49091292 and 49091301.

It is not an unprimeable number, because it can be changed into a prime (49091327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329398 + ... + 329546.

Almost surely, 2^49091328 is an apocalyptic number.

49091328 is a gapful number since it is divisible by the number (48) 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 49091328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83701800).

49091328 is an abundant number, since it is smaller than the sum of its proper divisors (118312272).

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

49091328 is a wasteful number, since it uses less digits than its factorization.

49091328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 178 counting only the distinct ones).

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

The square root of 49091328 is about 7006.5203917494. The cubic root of 49091328 is about 366.1577748506.

The spelling of 49091328 in words is "forty-nine million, ninety-one thousand, three hundred twenty-eight".