30666276 has 30 divisors (see below), whose sum is σ = 80168550. Its totient is φ = 10221984.

The previous prime is 30666257. The next prime is 30666313. The reversal of 30666276 is 67266603.

It can be written as a sum of positive squares in only one way, i.e., 30536676 + 129600 = 5526^2 + 360^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30666276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47001 + ... + 47648.

It is an arithmetic number, because the mean of its divisors is an integer number (2672285).

Almost surely, 2^30666276 is an apocalyptic number.

30666276 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30666276 is an abundant number, since it is smaller than the sum of its proper divisors (49502274).

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

30666276 is a wasteful number, since it uses less digits than its factorization.

30666276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94665 (or 94654 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 30666276 is about 5537.7139687781. The cubic root of 30666276 is about 313.0067332776.

The spelling of 30666276 in words is "thirty million, six hundred sixty-six thousand, two hundred seventy-six".