30380536 has 8 divisors (see below), whose sum is σ = 56963520. Its totient is φ = 15190264.

The previous prime is 30380533. The next prime is 30380551. The reversal of 30380536 is 63508303.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30380531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1898776 + ... + 1898791.

It is an arithmetic number, because the mean of its divisors is an integer number (7120440).

Almost surely, 2^30380536 is an apocalyptic number.

It is an amenable number.

30380536 is a deficient number, since it is larger than the sum of its proper divisors (26582984).

30380536 is a wasteful number, since it uses less digits than its factorization.

30380536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797573 (or 3797569 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30380536 is about 5511.8541344996. The cubic root of 30380536 is about 312.0315276052.

Adding to 30380536 its reverse (63508303), we get a palindrome (93888839).

The spelling of 30380536 in words is "thirty million, three hundred eighty thousand, five hundred thirty-six".