30706146 has 12 divisors (see below), whose sum is σ = 66530022. Its totient is φ = 10235376.

The previous prime is 30706141. The next prime is 30706153. The reversal of 30706146 is 64160703.

It can be written as a sum of positive squares in only one way, i.e., 18533025 + 12173121 = 4305^2 + 3489^2 .

It is not an unprimeable number, because it can be changed into a prime (30706141) 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, 852931 + ... + 852966.

Almost surely, 2^30706146 is an apocalyptic number.

30706146 is an abundant number, since it is smaller than the sum of its proper divisors (35823876).

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

30706146 is a wasteful number, since it uses less digits than its factorization.

30706146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705905 (or 1705902 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30706146 is about 5541.3126603721. The cubic root of 30706146 is about 313.1423238530.

Adding to 30706146 its reverse (64160703), we get a palindrome (94866849).

It can be divided in two parts, 3070 and 6146, that added together give a square (9216 = 96²).

The spelling of 30706146 in words is "thirty million, seven hundred six thousand, one hundred forty-six".