5781290 has 16 divisors (see below), whose sum is σ = 10434312. Its totient is φ = 2306304.

The previous prime is 5781289. The next prime is 5781311. The reversal of 5781290 is 921875.

It can be written as a sum of positive squares in 4 ways, for example, as 1442401 + 4338889 = 1201^2 + 2083^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 6638.

Almost surely, 2^5781290 is an apocalyptic number.

5781290 is a deficient number, since it is larger than the sum of its proper divisors (4653022).

5781290 is a wasteful number, since it uses less digits than its factorization.

5781290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5781290 is about 2404.4313256984. The cubic root of 5781290 is about 179.4767727282.

The spelling of 5781290 in words is "five million, seven hundred eighty-one thousand, two hundred ninety".