30279442 has 8 divisors (see below), whose sum is σ = 45648000. Its totient is φ = 15063444.

The previous prime is 30279433. The next prime is 30279463. The reversal of 30279442 is 24497203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37642 + ... + 38437.

It is an arithmetic number, because the mean of its divisors is an integer number (5706000).

Almost surely, 2^30279442 is an apocalyptic number.

30279442 is a deficient number, since it is larger than the sum of its proper divisors (15368558).

30279442 is a wasteful number, since it uses less digits than its factorization.

30279442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76280.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 30279442 is about 5502.6758945081. The cubic root of 30279442 is about 311.6850385553.

The spelling of 30279442 in words is "thirty million, two hundred seventy-nine thousand, four hundred forty-two".