30770100 has 108 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 8116800.

The previous prime is 30770099. The next prime is 30770123. The reversal of 30770100 is 107703.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 161005 + ... + 161195.

It is an arithmetic number, because the mean of its divisors is an integer number (902720).

Almost surely, 2^30770100 is an apocalyptic number.

30770100 is a gapful number since it is divisible by the number (30) 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 30770100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

30770100 is an abundant number, since it is smaller than the sum of its proper divisors (66723660).

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

30770100 is a wasteful number, since it uses less digits than its factorization.

30770100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 147, while the sum is 18.

The square root of 30770100 is about 5547.0803131017. The cubic root of 30770100 is about 313.3595747853.

Adding to 30770100 its reverse (107703), we get a palindrome (30877803).

It can be divided in two parts, 307 and 70100, that added together give a palindrome (70407).

The spelling of 30770100 in words is "thirty million, seven hundred seventy thousand, one hundred".