5149440 has 144 divisors (see below), whose sum is σ = 18396000. Its totient is φ = 1363968.

The previous prime is 5149429. The next prime is 5149471. The reversal of 5149440 is 449415.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34486 + ... + 34634.

It is an arithmetic number, because the mean of its divisors is an integer number (127750).

Almost surely, 2^5149440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5149440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9198000).

5149440 is an abundant number, since it is smaller than the sum of its proper divisors (13246560).

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

5149440 is a wasteful number, since it uses less digits than its factorization.

5149440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5149440 is about 2269.2377574860. The cubic root of 5149440 is about 172.6844907055.

The spelling of 5149440 in words is "five million, one hundred forty-nine thousand, four hundred forty".