30274381 has 2 divisors, whose sum is σ = 30274382. Its totient is φ = 30274380.

The previous prime is 30274351. The next prime is 30274393. The reversal of 30274381 is 18347203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18198756 + 12075625 = 4266^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 30274381 - 2¹³ = 30266189 is a prime.

It is a super-2 number, since 2×30274381² = 1833076289866322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30274351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15137190 + 15137191.

It is an arithmetic number, because the mean of its divisors is an integer number (15137191).

Almost surely, 2^30274381 is an apocalyptic number.

It is an amenable number.

30274381 is a deficient number, since it is larger than the sum of its proper divisors (1).

30274381 is an equidigital number, since it uses as much as digits as its factorization.

30274381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30274381 is about 5502.2160081189. The cubic root of 30274381 is about 311.6676722525.

The spelling of 30274381 in words is "thirty million, two hundred seventy-four thousand, three hundred eighty-one".