5661480 has 64 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 1372160.

The previous prime is 5661457. The next prime is 5661497. The reversal of 5661480 is 841665.

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

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, 825 + ... + 3464.

It is an arithmetic number, because the mean of its divisors is an integer number (289575).

Almost surely, 2^5661480 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 5661480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9266400).

5661480 is an abundant number, since it is smaller than the sum of its proper divisors (12871320).

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

5661480 is a wasteful number, since it uses less digits than its factorization.

5661480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 5661480 is about 2379.3864755436. The cubic root of 5661480 is about 178.2282977328.

The spelling of 5661480 in words is "five million, six hundred sixty-one thousand, four hundred eighty".