8380490 has 16 divisors (see below), whose sum is σ = 15972552. Its totient is φ = 3154944.

The previous prime is 8380469. The next prime is 8380511. The reversal of 8380490 is 940838.

It is an interprime number because it is at equal distance from previous prime (8380469) and next prime (8380511).

It can be written as a sum of positive squares in 4 ways, for example, as 5480281 + 2900209 = 2341^2 + 1703^2 .

It is a super-2 number, since 2×8380490² = 140465225280200, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24479 + ... + 24818.

Almost surely, 2^8380490 is an apocalyptic number.

8380490 is a deficient number, since it is larger than the sum of its proper divisors (7592062).

8380490 is a wasteful number, since it uses less digits than its factorization.

8380490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49321.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8380490 is about 2894.9075978345. The cubic root of 8380490 is about 203.1217692583.

The spelling of 8380490 in words is "eight million, three hundred eighty thousand, four hundred ninety".