30149822 has 4 divisors (see below), whose sum is σ = 45224736. Its totient is φ = 15074910.

The previous prime is 30149807. The next prime is 30149843. The reversal of 30149822 is 22894103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22894103 = 43 ⋅532421.

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 as a sum of consecutive naturals, namely, 7537454 + ... + 7537457.

It is an arithmetic number, because the mean of its divisors is an integer number (11306184).

Almost surely, 2^30149822 is an apocalyptic number.

30149822 is a deficient number, since it is larger than the sum of its proper divisors (15074914).

30149822 is a wasteful number, since it uses less digits than its factorization.

30149822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15074913.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30149822 is about 5490.8853566615. The cubic root of 30149822 is about 311.2396494464.

The spelling of 30149822 in words is "thirty million, one hundred forty-nine thousand, eight hundred twenty-two".