30277172 has 6 divisors (see below), whose sum is σ = 52985058. Its totient is φ = 15138584.

The previous prime is 30277157. The next prime is 30277183. The reversal of 30277172 is 27177203.

It can be written as a sum of positive squares in only one way, i.e., 24641296 + 5635876 = 4964^2 + 2374^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3784643 + ... + 3784650.

It is an arithmetic number, because the mean of its divisors is an integer number (8830843).

Almost surely, 2^30277172 is an apocalyptic number.

It is an amenable number.

30277172 is a deficient number, since it is larger than the sum of its proper divisors (22707886).

30277172 is a wasteful number, since it uses less digits than its factorization.

30277172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569297 (or 7569295 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 30277172 is about 5502.4696273582. The cubic root of 30277172 is about 311.6772495223.

The spelling of 30277172 in words is "thirty million, two hundred seventy-seven thousand, one hundred seventy-two".