30465738 has 12 divisors (see below), whose sum is σ = 66009138. Its totient is φ = 10155240.

The previous prime is 30465737. The next prime is 30465749. The reversal of 30465738 is 83756403.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26904969 + 3560769 = 5187^2 + 1887^2 .

It is a super-2 number, since 2×30465738² = 1856322383769288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30465733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 846253 + ... + 846288.

Almost surely, 2^30465738 is an apocalyptic number.

30465738 is an abundant number, since it is smaller than the sum of its proper divisors (35543400).

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

30465738 is a wasteful number, since it uses less digits than its factorization.

30465738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692549 (or 1692546 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30465738 is about 5519.5777012377. The cubic root of 30465738 is about 312.3229520852.

The spelling of 30465738 in words is "thirty million, four hundred sixty-five thousand, seven hundred thirty-eight".