30549036 has 48 divisors (see below), whose sum is σ = 85756160. Its totient is φ = 8268480.

The previous prime is 30549019. The next prime is 30549047. The reversal of 30549036 is 63094503.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30548994 and 30549012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975 + ... + 11166.

Almost surely, 2^30549036 is an apocalyptic number.

It is an amenable number.

30549036 is an abundant number, since it is smaller than the sum of its proper divisors (55207124).

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

30549036 is a wasteful number, since it uses less digits than its factorization.

30549036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174 (or 19172 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 30549036 is about 5527.1182364773. The cubic root of 30549036 is about 312.6073393396.

It can be divided in two parts, 3054 and 9036, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 30549036 in words is "thirty million, five hundred forty-nine thousand, thirty-six".