5649440 has 96 divisors (see below), whose sum is σ = 14805504. Its totient is φ = 2027520.

The previous prime is 5649439. The next prime is 5649451. The reversal of 5649440 is 449465.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 5649397 and 5649406.

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, 84287 + ... + 84353.

It is an arithmetic number, because the mean of its divisors is an integer number (154224).

Almost surely, 2^5649440 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 5649440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7402752).

5649440 is an abundant number, since it is smaller than the sum of its proper divisors (9156064).

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

5649440 is a wasteful number, since it uses less digits than its factorization.

5649440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 5649440 is about 2376.8550649966. The cubic root of 5649440 is about 178.1018648521.

The spelling of 5649440 in words is "five million, six hundred forty-nine thousand, four hundred forty".