5390640 has 60 divisors (see below), whose sum is σ = 18105984. Its totient is φ = 1437312.

The previous prime is 5390629. The next prime is 5390647. The reversal of 5390640 is 460935.

5390640 = T₄₉ + T₅₀ + ... + T₃₁₈.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (5390647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3024 + ... + 4463.

Almost surely, 2^5390640 is an apocalyptic number.

It is an amenable number.

5390640 is an abundant number, since it is smaller than the sum of its proper divisors (12715344).

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

5390640 is a wasteful number, since it uses less digits than its factorization.

5390640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506 (or 7497 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 5390640 is about 2321.7751829150. The cubic root of 5390640 is about 175.3396397211.

The spelling of 5390640 in words is "five million, three hundred ninety thousand, six hundred forty".