30249469 has 4 divisors (see below), whose sum is σ = 30406396. Its totient is φ = 30092544.

The previous prime is 30249449. The next prime is 30249491. The reversal of 30249469 is 96494203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10562500 + 19686969 = 3250^2 + 4437^2 .

It is a cyclic number.

It is not a de Polignac number, because 30249469 - 2¹⁷ = 30118397 is a prime.

It is a super-2 number, since 2×30249469² = 1830060749563922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30249449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78174 + ... + 78559.

It is an arithmetic number, because the mean of its divisors is an integer number (7601599).

Almost surely, 2^30249469 is an apocalyptic number.

It is an amenable number.

30249469 is a deficient number, since it is larger than the sum of its proper divisors (156927).

30249469 is a wasteful number, since it uses less digits than its factorization.

30249469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156926.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 30249469 is about 5499.9517270609. The cubic root of 30249469 is about 311.5821610553.

The spelling of 30249469 in words is "thirty million, two hundred forty-nine thousand, four hundred sixty-nine".