5128390 has 32 divisors (see below), whose sum is σ = 9906624. Its totient is φ = 1904640.

The previous prime is 5128369. The next prime is 5128391. The reversal of 5128390 is 938215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16335 + ... + 16645.

It is an arithmetic number, because the mean of its divisors is an integer number (309582).

Almost surely, 2^5128390 is an apocalyptic number.

5128390 is a deficient number, since it is larger than the sum of its proper divisors (4778234).

5128390 is a wasteful number, since it uses less digits than its factorization.

5128390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 5128390 is about 2264.5948865084. The cubic root of 5128390 is about 172.4488681330.

It can be divided in two parts, 51 and 28390, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 5128390 in words is "five million, one hundred twenty-eight thousand, three hundred ninety".