30545442 has 12 divisors (see below), whose sum is σ = 66181830. Its totient is φ = 10181808.

The previous prime is 30545419. The next prime is 30545453. The reversal of 30545442 is 24454503.

It can be written as a sum of positive squares in only one way, i.e., 19793601 + 10751841 = 4449^2 + 3279^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848467 + ... + 848502.

Almost surely, 2^30545442 is an apocalyptic number.

30545442 is an abundant number, since it is smaller than the sum of its proper divisors (35636388).

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

30545442 is a wasteful number, since it uses less digits than its factorization.

30545442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696977 (or 1696974 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 30545442 is about 5526.7931026953. The cubic root of 30545442 is about 312.5950797619.

Adding to 30545442 its reverse (24454503), we get a palindrome (54999945).

The spelling of 30545442 in words is "thirty million, five hundred forty-five thousand, four hundred forty-two".