30442259 has 2 divisors, whose sum is σ = 30442260. Its totient is φ = 30442258.

The previous prime is 30442219. The next prime is 30442267. The reversal of 30442259 is 95224403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30442259 is a prime.

It is a super-2 number, since 2×30442259² = 1853462266046162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30442219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15221129 + 15221130.

It is an arithmetic number, because the mean of its divisors is an integer number (15221130).

Almost surely, 2^30442259 is an apocalyptic number.

30442259 is a deficient number, since it is larger than the sum of its proper divisors (1).

30442259 is an equidigital number, since it uses as much as digits as its factorization.

30442259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30442259 is about 5517.4504075705. The cubic root of 30442259 is about 312.2426989258.

The spelling of 30442259 in words is "thirty million, four hundred forty-two thousand, two hundred fifty-nine".