30279490 has 16 divisors (see below), whose sum is σ = 54807480. Its totient is φ = 12044160.

The previous prime is 30279463. The next prime is 30279503. The reversal of 30279490 is 9497203.

It can be written as a sum of positive squares in 4 ways, for example, as 16949689 + 13329801 = 4117^2 + 3651^2 .

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, 6555 + ... + 10174.

Almost surely, 2^30279490 is an apocalyptic number.

30279490 is a deficient number, since it is larger than the sum of its proper divisors (24527990).

30279490 is a wasteful number, since it uses less digits than its factorization.

30279490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16917.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 30279490 is about 5502.6802560207. The cubic root of 30279490 is about 311.6852032531.

The spelling of 30279490 in words is "thirty million, two hundred seventy-nine thousand, four hundred ninety".