48511440 has 160 divisors (see below), whose sum is σ = 171893760. Its totient is φ = 12566016.

The previous prime is 48511433. The next prime is 48511453. The reversal of 48511440 is 4411584.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79617 + ... + 80223.

It is an arithmetic number, because the mean of its divisors is an integer number (1074336).

Almost surely, 2^48511440 is an apocalyptic number.

48511440 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 48511440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85946880).

48511440 is an abundant number, since it is smaller than the sum of its proper divisors (123382320).

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

48511440 is a wasteful number, since it uses less digits than its factorization.

48511440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 48511440 is about 6965.0154342973. The cubic root of 48511440 is about 364.7103224858.

The spelling of 48511440 in words is "forty-eight million, five hundred eleven thousand, four hundred forty".