30550838 has 4 divisors (see below), whose sum is σ = 45826260. Its totient is φ = 15275418.

The previous prime is 30550837. The next prime is 30550867. The reversal of 30550838 is 83805503.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30550837) by changing a digit.

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 as a sum of consecutive naturals, namely, 7637708 + ... + 7637711.

It is an arithmetic number, because the mean of its divisors is an integer number (11456565).

Almost surely, 2^30550838 is an apocalyptic number.

30550838 is a deficient number, since it is larger than the sum of its proper divisors (15275422).

30550838 is a wasteful number, since it uses less digits than its factorization.

30550838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275421.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 30550838 is about 5527.2812484982. The cubic root of 30550838 is about 312.6134858221.

The spelling of 30550838 in words is "thirty million, five hundred fifty thousand, eight hundred thirty-eight".