30274280 has 48 divisors (see below), whose sum is σ = 72467460. Its totient is φ = 11343360.

The previous prime is 30274271. The next prime is 30274291. The reversal of 30274280 is 8247203.

30274280 = T₁₀₆₄ + T₁₀₆₅ + ... + T₁₁₁₄.

It can be written as a sum of positive squares in 2 ways, for example, as 30096196 + 178084 = 5486^2 + 422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143375 + ... + 143585.

Almost surely, 2^30274280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30274280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36233730).

30274280 is an abundant number, since it is smaller than the sum of its proper divisors (42193180).

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

30274280 is a wasteful number, since it uses less digits than its factorization.

30274280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30274280 is about 5502.2068299910. The cubic root of 30274280 is about 311.6673256617.

The spelling of 30274280 in words is "thirty million, two hundred seventy-four thousand, two hundred eighty".