30827390 has 16 divisors (see below), whose sum is σ = 60534000. Its totient is φ = 11209920.

The previous prime is 30827371. The next prime is 30827393. The reversal of 30827390 is 9372803.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30827393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140015 + ... + 140234.

It is an arithmetic number, because the mean of its divisors is an integer number (3783375).

Almost surely, 2^30827390 is an apocalyptic number.

30827390 is a deficient number, since it is larger than the sum of its proper divisors (29706610).

30827390 is a wasteful number, since it uses less digits than its factorization.

30827390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280267.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30827390 is about 5552.2418895434. The cubic root of 30827390 is about 313.5539327267.

The spelling of 30827390 in words is "thirty million, eight hundred twenty-seven thousand, three hundred ninety".