5615440 has 40 divisors (see below), whose sum is σ = 13827240. Its totient is φ = 2113536.

The previous prime is 5615437. The next prime is 5615459. The reversal of 5615440 is 445165.

It can be written as a sum of positive squares in 4 ways, for example, as 1272384 + 4343056 = 1128^2 + 2084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705 + ... + 3424.

It is an arithmetic number, because the mean of its divisors is an integer number (345681).

Almost surely, 2^5615440 is an apocalyptic number.

It is an amenable number.

5615440 is an abundant number, since it is smaller than the sum of its proper divisors (8211800).

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

5615440 is a wasteful number, since it uses less digits than its factorization.

5615440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159 (or 4153 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5615440 is about 2369.6919631041. The cubic root of 5615440 is about 177.7438557962.

The spelling of 5615440 in words is "five million, six hundred fifteen thousand, four hundred forty".