30705150 has 48 divisors (see below), whose sum is σ = 87030144. Its totient is φ = 7018080.

The previous prime is 30705149. The next prime is 30705163. The reversal of 30705150 is 5150703.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13572 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (1813128).

Almost surely, 2^30705150 is an apocalyptic number.

30705150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30705150 is an abundant number, since it is smaller than the sum of its proper divisors (56324994).

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

30705150 is a wasteful number, since it uses less digits than its factorization.

30705150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29265 (or 29260 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 30705150 is about 5541.2227892407. Note that the first 3 decimals coincide. The cubic root of 30705150 is about 313.1389380691.

Adding to 30705150 its reverse (5150703), we get a palindrome (35855853).

The spelling of 30705150 in words is "thirty million, seven hundred five thousand, one hundred fifty".