30770136 has 96 divisors (see below), whose sum is σ = 92158560. Its totient is φ = 9225216.

The previous prime is 30770123. The next prime is 30770147. The reversal of 30770136 is 63107703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27606 + ... + 28698.

It is an arithmetic number, because the mean of its divisors is an integer number (959985).

Almost surely, 2^30770136 is an apocalyptic number.

30770136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30770136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46079280).

30770136 is an abundant number, since it is smaller than the sum of its proper divisors (61388424).

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

30770136 is a wasteful number, since it uses less digits than its factorization.

30770136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 30770136 is about 5547.0835580510. The cubic root of 30770136 is about 313.3596969920.

Adding to 30770136 its reverse (63107703), we get a palindrome (93877839).

The spelling of 30770136 in words is "thirty million, seven hundred seventy thousand, one hundred thirty-six".