30172468 has 6 divisors (see below), whose sum is σ = 52801826. Its totient is φ = 15086232.

The previous prime is 30172463. The next prime is 30172489. The reversal of 30172468 is 86427103.

It can be written as a sum of positive squares in only one way, i.e., 30162064 + 10404 = 5492^2 + 102^2 .

It is a super-2 number, since 2×30172468² = 1820755650422048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30172463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771555 + ... + 3771562.

Almost surely, 2^30172468 is an apocalyptic number.

It is an amenable number.

30172468 is a deficient number, since it is larger than the sum of its proper divisors (22629358).

30172468 is a wasteful number, since it uses less digits than its factorization.

30172468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543121 (or 7543119 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 30172468 is about 5492.9471142548. The cubic root of 30172468 is about 311.3175555905.

The spelling of 30172468 in words is "thirty million, one hundred seventy-two thousand, four hundred sixty-eight".